Nixon saying "Sock it to ME?" was embarrassingly awful. By all accounts Nixon attempting to tell a joke was similarly dreadful. Bright man, but had the sense of humor of a mollusk.
The show was giddily silly and borderline raunchy and I loved it. Arte Johnson was my favorite cast member, as the little German soldier and Tyrone F. Horneye, he of the long black overcoat and Walnettos.
Anyone but me remember "That Was The Week That Was", aka "TW3"?
Loved that one. Consistently witty, equal-opportunity satire on current events. It spared no one.