Probably been pointed out before but my friend I've been showing always sunny just pointed out the dog painting from "Pop-Pop: the final solution" is also seen in The Nightman Cometh. :
In It's Always Sunny in Philadelphia, Frank's painting by Hitler appears on the set of “The Nightman Cometh,” four seasons before the episode about it. : r/TVDetails
YARN | It's Always Sunny in Philadelphia, Pop-Pop: The Final Solution top video clips | TV Episode | 紗
Recap: It's Always Sunny in Philadelphia, Episode 8.01 – Pop-Pop: The Final Solution - DryedMangoez.com
YARN | It's Always Sunny in Philadelphia, Pop-Pop: The Final Solution top video clips | TV Episode | 紗
It's Always Sunny in Philadelphia" Pop-Pop: The Final Solution (TV Episode 2012) - IMDb
Always Sunny In Philadelphia - ep: pop-pop: the final solution | It's always sunny in philadelphia, Comedy tv series, Sunny in philadelphia
Vudu - Watch It's Always Sunny in Philadelphia: Season 8
Recap: It's Always Sunny in Philadelphia, Episode 8.01 – Pop-Pop: The Final Solution - DryedMangoez.com
It's Always Sunny in Philadelphia" Pop-Pop: The Final Solution (TV Episode 2012) - IMDb
It's Always Sunny in Philadelphia" Pop-Pop: The Final Solution (TV Episode 2012) - IMDb
IT'S ALWAYS SUNNY REACTION 8x1 Pop-Pop The Final Solution - YouTube
Recap of "It's Always Sunny in Philadelphia" Season 8 Episode 1 | Recap Guide
It's Always Sunny in Philadelphia: Season 8, Episode 1 - Rotten Tomatoes
Recap: It's Always Sunny in Philadelphia, Episode 8.01 – Pop-Pop: The Final Solution - DryedMangoez.com
Recap of "It's Always Sunny in Philadelphia" Season 8 Episode 1 | Recap Guide
Recap: It's Always Sunny in Philadelphia, Episode 8.01 – Pop-Pop: The Final Solution - DryedMangoez.com
YARN | It's Always Sunny in Philadelphia, Pop-Pop: The Final Solution top video clips | TV Episode | 紗
YARN | It's Always Sunny in Philadelphia, Pop-Pop: The Final Solution top video clips | TV Episode | 紗
Pop-Pop: The Final Solution - It's Always Sunny in Philadelphia (Season 8, Episode 1) | Apple TV
Pop-Pop: The Final Solution | Crowtein
It's Always Sunny in Philadelphia Specials - Trakt
It's Always Sunny in Philadelphia" Pop-Pop: The Final Solution (TV Episode 2012) - IMDb
It's Always Sunny in Philadelphia" Pop-Pop: The Final Solution (TV Episode 2012) - IMDb
