It's Always Sunny in Philadelphia

It's Always Sunny in Philadelphia
Season 11, Episode 2
Frank Falls Out the Window
Image #89

and the window seemed to be some sort of portal to the year 2006.

portal seemed window

TMDB episode metadata

Episode title: Frank Falls Out the Window

Air date: January 13, 2016

Director: Heath Cullens

Top billed cast: Charlie Day, Glenn Howerton, Rob Mac, Kaitlin Olson, Danny DeVito

Frank falls out the window causing him to think it's 2006, the gang approaches it as a do-over and attempts to fix their past mistakes.

Source: TMDB