Once Upon a Time in Wonderland to The Cosby Show

Once Upon a Time In Wonderland was a spin off of OUAT

Characters drink MacCutcheon Whiskey on both shows

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 Mary Jane Lewis was originally a character on The Lucy Show (also called The Lucille Ball Show).

Mr. Mooney from The Lucy Show was on Hi Honey, I'm Home!

Hi Honey, I'm Home!'s Honey and Lloyd discussed The Cosby Show's Huxtables.