O Astro / O Astro Season guide O Astro: O Astro 185 episodes Premiered Dec 6, 1977 Updated Jul 21, 2026 Spoiler-safe Advertisement Season 1 Episodes Episode Guide 🛡️ SPOILER SHIELD Season 1 Progress Shield All Safe I'm Watching Caught Up Season: Season 1 Last Watched: None (Not started) Episode 1 Episode 2 Episode 3 Episode 4 Episode 5 Episode 6 Episode 7 Episode 8 Episode 9 Episode 10 Episode 11 Episode 12 Episode 13 Episode 14 Episode 15 Episode 16 Episode 17 Episode 18 Episode 19 Episode 20 Episode 21 Episode 22 Episode 23 Episode 24 Episode 25 Episode 26 Episode 27 Episode 28 Episode 29 Episode 30 Episode 31 Episode 32 Episode 33 Episode 34 Episode 35 Episode 36 Episode 37 Episode 38 Episode 39 Episode 40 Episode 41 Episode 42 Episode 43 Episode 44 Episode 45 Episode 46 Episode 47 Episode 48 Episode 49 Episode 50 Episode 51 Episode 52 Episode 53 Episode 54 Episode 55 Episode 56 Episode 57 Episode 58 Episode 59 Episode 60 Episode 61 Episode 62 Episode 63 Episode 64 Episode 65 Episode 66 Episode 67 Episode 68 Episode 69 Episode 70 Episode 71 Episode 72 Episode 73 Episode 74 Episode 75 Episode 76 Episode 77 Episode 78 Episode 79 Episode 80 Episode 81 Episode 82 Episode 83 Episode 84 Episode 85 Episode 86 Episode 87 Episode 88 Episode 89 Episode 90 Episode 91 Episode 92 Episode 93 Episode 94 Episode 95 Episode 96 Episode 97 Episode 98 Episode 99 Episode 100 Episode 101 Episode 102 Episode 103 Episode 104 Episode 105 Episode 106 Episode 107 Episode 108 Episode 109 Episode 110 Episode 111 Episode 112 Episode 113 Episode 114 Episode 115 Episode 116 Episode 117 Episode 118 Episode 119 Episode 120 Episode 121 Episode 122 Episode 123 Episode 124 Episode 125 Episode 126 Episode 127 Episode 128 Episode 129 Episode 130 Episode 131 Episode 132 Episode 133 Episode 134 Episode 135 Episode 136 Episode 137 Episode 138 Episode 139 Episode 140 Episode 141 Episode 142 Episode 143 Episode 144 Episode 145 Episode 146 Episode 147 Episode 148 Episode 149 Episode 150 Episode 151 Episode 152 Episode 153 Episode 154 Episode 155 Episode 156 Episode 157 Episode 158 Episode 159 Episode 160 Episode 161 Episode 162 Episode 163 Episode 164 Episode 165 Episode 166 Episode 167 Episode 168 Episode 169 Episode 170 Episode 171 Episode 172 Episode 173 Episode 174 Episode 175 Episode 176 Episode 177 Episode 178 Episode 179 Episode 180 Episode 181 Episode 182 Episode 183 Episode 184 Episode 185 Future titles & synopses blurred. Tap "Reveal" on any card to peek. Binge Efficiency Engine Season 1: Filler vs. Essential Canon Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests. 98% Mytharc (3): Crucial lore & season climaxes Core (182): Character development & subplots Side Quest (0): Standalone / filler Show All (185) Crucial Mytharc (3) Essential Canon (185) S1·E1 Mytharc Chapter 1 Dec 6, 1977 · 50 min S1·E2 Core Chapter 2 Dec 7, 1977 · 41 min S1·E3 Core Chapter 3 Dec 8, 1977 · 47 min S1·E4 Core Chapter 4 Dec 9, 1977 · 43 min S1·E5 Core Chapter 5 Dec 10, 1977 · 46 min S1·E6 Core Chapter 6 Dec 12, 1977 · 39 min S1·E7 Core Chapter 7 Dec 13, 1977 · 45 min S1·E8 Core Chapter 8 Dec 14, 1977 · 44 min S1·E9 Core Chapter 9 Dec 15, 1977 · 43 min S1·E10 Core Chapter 10 Dec 16, 1977 · 41 min S1·E11 Core Chapter 11 Dec 17, 1977 · 39 min S1·E12 Core Chapter 12 Dec 19, 1977 · 37 min S1·E13 Core Chapter 13 Dec 20, 1977 · 36 min S1·E14 Core Chapter 14 Dec 21, 1977 · 44 min S1·E15 Core Chapter 15 Dec 22, 1977 · 37 min S1·E16 Core Chapter 16 Dec 23, 1977 · 45 min S1·E17 Core Chapter 17 Dec 24, 1977 · 34 min S1·E18 Core Chapter 18 Dec 26, 1977 · 32 min S1·E19 Core Chapter 19 Dec 27, 1977 · 34 min S1·E20 Core Chapter 20 Dec 28, 1977 · 32 min S1·E21 Core Chapter 21 Dec 29, 1977 · 30 min S1·E22 Core Chapter 22 Dec 30, 1977 · 33 min S1·E23 Core Chapter 23 Dec 31, 1977 · 34 min S1·E24 Core Chapter 24 Jan 2, 1978 · 36 min S1·E25 Core Chapter 25 Jan 3, 1978 · 29 min S1·E26 Core Chapter 26 Jan 4, 1978 · 28 min S1·E27 Core Chapter 27 Jan 5, 1978 · 34 min S1·E28 Core Chapter 28 Jan 6, 1978 · 36 min S1·E29 Core Chapter 29 Jan 7, 1978 · 35 min S1·E30 Core Chapter 30 Jan 9, 1978 · 35 min S1·E31 Core Chapter 31 Jan 10, 1978 · 38 min S1·E32 Core Chapter 32 Jan 11, 1978 · 34 min S1·E33 Core Chapter 33 Jan 12, 1978 · 33 min S1·E34 Core Chapter 34 Jan 13, 1978 · 36 min S1·E35 Core Chapter 35 Jan 14, 1978 · 36 min S1·E36 Core Chapter 36 Jan 16, 1978 · 39 min S1·E37 Core Chapter 37 Jan 17, 1978 · 33 min S1·E38 Core Chapter 38 Jan 18, 1978 · 35 min S1·E39 Core Chapter 39 Jan 19, 1978 · 37 min S1·E40 Core Chapter 40 Jan 20, 1978 · 36 min S1·E41 Core Chapter 41 Jan 21, 1978 · 36 min S1·E42 Core Chapter 42 Jan 23, 1978 · 34 min S1·E43 Core Chapter 43 Jan 24, 1978 · 35 min S1·E44 Core Chapter 44 Jan 25, 1978 · 34 min S1·E45 Core Chapter 45 Jan 26, 1978 · 41 min S1·E46 Core Chapter 46 Jan 27, 1978 · 42 min S1·E47 Core Chapter 47 Jan 28, 1978 · 72 min S1·E48 Core Chapter 48 Jan 30, 1978 · 35 min S1·E49 Core Chapter 49 Jan 31, 1978 · 33 min S1·E50 Core Chapter 50 Feb 1, 1978 · 32 min S1·E51 Core Chapter 51 Feb 2, 1978 · 44 min S1·E52 Core Chapter 52 Feb 3, 1978 · 42 min S1·E53 Core Chapter 53 Feb 4, 1978 · 40 min S1·E54 Core Chapter 54 Feb 6, 1978 · 42 min S1·E55 Core Chapter 55 Feb 7, 1978 · 41 min S1·E56 Core Chapter 56 Feb 8, 1978 · 37 min S1·E57 Core Chapter 57 Feb 9, 1978 · 35 min S1·E58 Core Chapter 58 Feb 10, 1978 · 35 min S1·E59 Core Chapter 59 Feb 11, 1978 · 44 min S1·E60 Core Chapter 60 Feb 13, 1978 · 42 min S1·E61 Core Chapter 61 Feb 14, 1978 · 32 min S1·E62 Core Chapter 62 Feb 15, 1978 · 36 min S1·E63 Core Chapter 63 Feb 16, 1978 · 38 min S1·E64 Core Chapter 64 Feb 17, 1978 · 43 min S1·E65 Core Chapter 65 Feb 18, 1978 · 34 min S1·E66 Core Chapter 66 Feb 20, 1978 · 41 min S1·E67 Core Chapter 67 Feb 21, 1978 · 42 min S1·E68 Core Chapter 68 Feb 22, 1978 · 34 min S1·E69 Core Chapter 69 Feb 23, 1978 · 38 min S1·E70 Core Chapter 70 Feb 24, 1978 · 43 min S1·E71 Core Chapter 71 Feb 25, 1978 · 42 min S1·E72 Core Chapter 72 Feb 27, 1978 · 40 min S1·E73 Core Chapter 73 Feb 28, 1978 · 36 min S1·E74 Core Chapter 74 Mar 1, 1978 · 46 min S1·E75 Core Chapter 75 Mar 2, 1978 · 45 min S1·E76 Core Chapter 76 Mar 3, 1978 · 40 min S1·E77 Core Chapter 77 Mar 4, 1978 · 42 min S1·E78 Core Chapter 78 Mar 6, 1978 · 37 min S1·E79 Core Chapter 79 Mar 7, 1978 · 35 min S1·E80 Core Chapter 80 Mar 8, 1978 · 43 min S1·E81 Core Chapter 81 Mar 9, 1978 · 46 min S1·E82 Core Chapter 82 Mar 10, 1978 · 44 min S1·E83 Core Chapter 83 Mar 11, 1978 · 37 min S1·E84 Core Chapter 84 Mar 13, 1978 · 40 min S1·E85 Core Chapter 85 Mar 14, 1978 · 40 min S1·E86 Core Chapter 86 Mar 15, 1978 · 38 min S1·E87 Core Chapter 87 Mar 16, 1978 · 37 min S1·E88 Core Chapter 88 Mar 17, 1978 · 36 min S1·E89 Core Chapter 89 Mar 18, 1978 · 38 min S1·E90 Core Chapter 90 Mar 20, 1978 S1·E91 Core Chapter 91 Mar 21, 1978 S1·E92 Core Chapter 92 Mar 22, 1978 S1·E93 Core Chapter 93 Mar 23, 1978 S1·E94 Core Chapter 94 Mar 24, 1978 S1·E95 Core Chapter 95 Mar 25, 1978 S1·E96 Core Chapter 96 Mar 27, 1978 S1·E97 Core Chapter 97 Mar 28, 1978 S1·E98 Core Chapter 98 Mar 29, 1978 S1·E99 Core Chapter 99 Mar 30, 1978 S1·E100 Core Chapter 100 Mar 31, 1978 S1·E101 Core Chapter 101 Apr 1, 1978 S1·E102 Core Chapter 102 Apr 3, 1978 S1·E103 Core Chapter 103 Apr 4, 1978 S1·E104 Core Chapter 104 Apr 5, 1978 S1·E105 Core Chapter 105 Apr 6, 1978 S1·E106 Core Chapter 106 Apr 7, 1978 S1·E107 Core Chapter 107 Apr 8, 1978 S1·E108 Core Chapter 108 Apr 10, 1978 S1·E109 Core Chapter 109 Apr 11, 1978 S1·E110 Core Chapter 110 Apr 12, 1978 · 36 min S1·E111 Core Chapter 111 Apr 13, 1978 · 37 min S1·E112 Core Chapter 112 Apr 14, 1978 · 36 min S1·E113 Core Chapter 113 Apr 15, 1978 · 41 min S1·E114 Core Chapter 114 Apr 17, 1978 · 35 min S1·E115 Core Chapter 115 Apr 18, 1978 · 37 min S1·E116 Core Chapter 116 Apr 19, 1978 · 36 min S1·E117 Core Chapter 117 Apr 20, 1978 · 38 min S1·E118 Core Chapter 118 Apr 21, 1978 · 43 min S1·E119 Core Chapter 119 Apr 22, 1978 · 41 min S1·E120 Core Chapter 120 Apr 24, 1978 · 41 min S1·E121 Core Chapter 121 Apr 25, 1978 · 34 min S1·E122 Core Chapter 122 Apr 26, 1978 · 37 min S1·E123 Core Chapter 123 Apr 27, 1978 · 35 min S1·E124 Core Chapter 124 Apr 28, 1978 · 42 min S1·E125 Core Chapter 125 Apr 29, 1978 · 35 min S1·E126 Core Chapter 126 May 1, 1978 · 40 min S1·E127 Core Chapter 127 May 2, 1978 · 43 min S1·E128 Core Chapter 128 May 3, 1978 · 39 min S1·E129 Core Chapter 129 May 4, 1978 · 41 min S1·E130 Core Chapter 130 May 5, 1978 · 37 min S1·E131 Core Chapter 131 May 6, 1978 · 35 min S1·E132 Core Chapter 132 May 8, 1978 · 43 min S1·E133 Core Chapter 133 May 9, 1978 · 47 min S1·E134 Core Chapter 134 May 10, 1978 · 43 min S1·E135 Core Chapter 135 May 11, 1978 · 38 min S1·E136 Core Chapter 136 May 12, 1978 · 40 min S1·E137 Core Chapter 137 May 13, 1978 · 40 min S1·E138 Core Chapter 138 May 15, 1978 · 37 min S1·E139 Core Chapter 139 May 16, 1978 · 55 min S1·E140 Core Chapter 140 May 17, 1978 · 55 min S1·E141 Core Chapter 141 May 18, 1978 · 46 min S1·E142 Core Chapter 142 May 19, 1978 · 40 min S1·E143 Core Chapter 143 May 20, 1978 · 46 min S1·E144 Core Chapter 144 May 22, 1978 · 49 min S1·E145 Core Chapter 145 May 23, 1978 · 45 min S1·E146 Core Chapter 146 May 24, 1978 · 47 min S1·E147 Core Episode 147 May 25, 1978 · 39 min S1·E148 Core Chapter 148 May 26, 1978 · 48 min S1·E149 Core Chapter 149 May 27, 1978 · 46 min S1·E150 Core Chapter 150 May 29, 1978 · 47 min S1·E151 Core Chapter 151 May 30, 1978 · 44 min S1·E152 Core Chapter 152 May 31, 1978 · 48 min S1·E153 Core Chapter 153 Jun 1, 1978 · 47 min S1·E154 Core Chapter 154 Jun 2, 1978 · 53 min S1·E155 Core Chapter 155 Jun 3, 1978 · 45 min S1·E156 Core Chapter 156 Jun 5, 1978 · 43 min S1·E157 Core Chapter 157 Jun 6, 1978 · 56 min S1·E158 Core Chapter 158 Jun 7, 1978 · 36 min S1·E159 Core Chapter 159 Jun 8, 1978 · 47 min S1·E160 Core Chapter 160 Jun 9, 1978 · 42 min S1·E161 Core Chapter 161 Jun 10, 1978 · 59 min S1·E162 Core Chapter 162 Jun 12, 1978 · 44 min S1·E163 Core Chapter 163 Jun 13, 1978 · 39 min S1·E164 Core Chapter 164 Jun 14, 1978 · 56 min S1·E165 Core Chapter 165 Jun 15, 1978 · 40 min S1·E166 Core Chapter 166 Jun 16, 1978 · 44 min S1·E167 Core Chapter 167 Jun 17, 1978 · 44 min S1·E168 Core Chapter 168 Jun 19, 1978 · 45 min S1·E169 Core Chapter 169 Jun 20, 1978 · 40 min S1·E170 Core Chapter 170 Jun 21, 1978 · 54 min S1·E171 Core Chapter 171 Jun 22, 1978 · 32 min S1·E172 Core Chapter 172 Jun 23, 1978 · 39 min S1·E173 Core Chapter 173 Jun 24, 1978 · 51 min S1·E174 Core Chapter 174 Jun 26, 1978 · 44 min S1·E175 Core Chapter 175 Jun 27, 1978 · 40 min S1·E176 Core Chapter 176 Jun 28, 1978 · 46 min S1·E177 Core Chapter 177 Jun 29, 1978 · 46 min S1·E178 Core Chapter 178 Jun 30, 1978 · 46 min S1·E179 Core Chapter 179 Jul 1, 1978 · 33 min S1·E180 Core Chapter 180 Jul 3, 1978 · 39 min S1·E181 Core Chapter 181 Jul 4, 1978 · 36 min S1·E182 Core Chapter 182 Jul 5, 1978 · 48 min S1·E183 Core Chapter 183 Jul 6, 1978 · 41 min S1·E184 Mytharc Chapter 184 Jul 7, 1978 · 59 min S1·E185 Mytharc Chapter 185 Jul 8, 1978 · 70 min