Will & Grace (1998)

Pilot - S1-E1

Plot hole: Ellen and Rob wear wedding rings, yet their wedding is not announced until "An Affair to Forget" in the second season.

New Will City - S3-E1

Grace: My love for you is like this scar. Ugly, but permanent.

Election - S2-E2

Trivia: In the scene where the they are having a tenants meeting, the woman on the sofa tells Will that someone "stole" her umbrella, she says it's similar to the one Tim Kaiser has, and Tim Kaiser happens to be the show producer's name.