It's Always Sunny in Philadelphia to The Jackie Gleason Show

David Brent on The Office (UK) wore a Sergio Georgini leather jacket. A Sergio Georgini bag was on It's Always Sunny in Philadelphia.

Charlie of Lost once dated a girl whose father worked for a paper factory in Slough. The paper factory in Slough is the paper factory of The Office (UK).

The airplane that crashed and strand the cast of Lost was Oceanic Airlines Flight 815 also featured on Diagnosis Murder.

Mannix returned to TV on an episode of Diagnosis Murder to solve an old unsolved case with the help of Dr Mark Sloan.

Here's Lucy's Lucy Carter and Mannix's Mannix are held hostage in an episode of Here's Lucy.

Here's Lucy's Lucy was driven around Miami by Ralph Cramden of The Hooneymooner's

The Honeymooners Ralph Cramden (and others from the show) were featured in segments of The Jackie Gleason Show