For me, The Love Boat holds up pretty well.
The rest of their classic lineup is fairly rewatchable:
I love Lucy
The Andy Griffith Show
The Addams Family
The Beverly Hillbillies
Three’s Company
Family Ties
Dynasty
Little House on the Prairie
I agree with your assessment on A-Team, and would include Knight Rider, Air Wolf. Magnum PI is sort of an episode by episode situation for me. Some have held up, others haven’t.