WMG / NYPD Blue

NYPD Blue takes place in the same 'verse as Quantum Leap

...and the reason Sam Beckett "never leaped home" is because he had to help Greg Medavoy 24/7 for 12 years. The evidence: Greg has an annoying problem practically every week as one of the subplots of the show. Frequently he will Quip to Black with "Oh, boy."