For example...

Sliders had an episode titled "Summer of Love". 'til Death also had an episode titled "Summer of Love."

Taxi had an episode titled "Friends." NewsRadio also had an episode titled "Friends"

NewsRadio had an episode titled "Xmas Story." Futurama also had an episode titled "Xmas Story."

The Honeymooners has an episode titled "TV or Not TV." Mister Ed also had an episode titled "TV or Not TV."

And "Pilot" doesn't count, lol.

Someone keeps pulling up old Facts of Life posts, and one of them reminded me-

Facts of Life had a episode called Teacher's Pet. So did One Day at a Time.

Two dramas with vastly different content both have an episode titled Dangerous Liaisons: 7th Heaven and the short-lived Cashmere Mafia. Not only that but they aired on the same day when that 7H was repeated and that CM was new.

Someone keeps pulling up old Facts of Life posts, and one of them reminded me-

Facts of Life had a episode called Teacher's Pet. So did One Day at a Time.

There was a Mama's Family on today titled Teacher's Pet. That's three.

I don't know if this is relatable, but there are sitcoms that have two identical episode titles in one sitcom.

Example:
Spin City - The Apartment (1996), (2001)
Step by Step - Can't Buy Me Love (1995), (1997)