Well, call me easy, but I love this kind of silly, false definition theme. MEASURINGCUP (22A: Undergarment fitting device?) is just so absurd. I guess, since Jean O'Conor is female, she was maybe thinking of a bra cup, but my mind went immediately to the "sports cup," which made it even funnier, I think. MICROWAVE (43A: Hardly an attraction for a surfer?) is another funny one, but my favorite might be the last, CHAFINGDISH (56A: Attractive, but annoying date?). That's some quality material right there.
The fill, though it did contain a fair number of threes, was not that bad, I didn't think. I mean, if you're going to start with a three letter answer, it might as well be BLT (1A: Sandwich usually served with mayo). Heck, the theme must have put me in a great mood, because I don't even mind OHHI (19A: "I'm surprised to see you!").
TVCHANNELS (3D: Just 2 to 13, once) was tricky, especially since we never had a channel 13! And the other non-theme ten was also nice - GETAWAYCAR (27D: Aid for a bank heist). There's not much else that stands out - except, perhaps, for GHIA (55D: Karmann ____, classic German sports car) - and yes, there's a fair amount of AVEO, ELEV, SAXE, SIM, HPS, etc., but sue me, I still liked it. It was an enjoyable theme and it put me in a good mood. Can you ask anything else of a Wednesday?
Now, if you'll excuse me, I've got to TOGUP and get to work!