I watched many of those shows back when I was a kid (actually more in the 50s than the 60s). But the only one I’d watch today is Dick Van Dyke.
One of my favorite Get Smart moments is in the lab with their guy, Carlson, the gadget inventor. He shows them the world’s first gun silencer.
CARLSON: Go ahead. Shoot it.
(Maxwell fires, it’s freaking LOUD)
MAX: It doesn’t sound silenced to me.
CARLSON: Oh. That’s because when you shoot the gun, YOU HAVE TO YELL REALLY LOUD AT THE SAME TIME! 
That will make me laugh so hard every time I see that.
Or any scene with The Cone Of Silence. Or Heimie and of course, 99. WHOO, Barbara!