Talk about a blast from the past…or cast!
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Reunion: Robert Sean Leonard (House) checks intoThe Good Doctor.
Both series were created by executive producer David Shore.

Credit: ABC
The Conners
When to watch: Tuesday, Oct. 8 from 8-8:30 p.m.
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Reunion: This episode reunitesJohn GoodmanandDan Aykroyd(Blues Brothers 2000) as poker buddies.
Bless This Mess
When to watch: Tuesday, Oct. 8 from 8:30-9 p.m.
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Reunion: Michael Ian Black is reunited withWet Hot American SummersLake Bellwhen he guest stars.
Back home, Mike, Rudy, and Beau bond when an accident leaves them stranded in a tree.
Black-ish
When to watch: Tuesday, Oct. 8 from 9:30-10 p.m.
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Reunion:Girlfriendsstars Golden Brooks, Jill Marie Jones, and Persia White reunite withTracee Ellis Ross.
Meanwhile, Junior and Jack help Dre after he realizes he is out of touch with modern-day feminism.
The Goldbergs
When to watch: Wednesday, Oct. 9 from 8-8:30 p.m. ## Single Parents
When to watch: Wednesday, Oct. 9 from 9:31-10 p.m. She asks Will and Miggy for help because, despite his faults, she cant resist Derek.
Meanwhile, Douglas and Poppy try for a romantic second date.
Greys Anatomy
When to watch: Thursday, Oct. 10 from 8-9:01 p.m. ## A Million Little Things
When to watch: Thursday, Oct. 10 from 9:01-10:01 p.m.
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Reunion:Jerry Ferraraguest stars and is reunited withThink Like a MancastmateRomany Malco.
American Housewife
When to watch: Friday, Oct. 11 from 8-8:30 p.m. ## Fresh Off the Boat
When to watch: Friday, Oct. 11 from 8:30-9 p.m.
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Reunion:Ken Jeong(Crazy Rich Asians) returns as Louiss brother Gene.
The Rookie
When to watch: Sunday, Oct. 13 from 10-11 p.m.
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Reunion:Castlealums Seamus Deaver and Jon Huertas guest star.