I think they used the color label through the ctc-11, but I'm not absolutely sure.
I have UHF converters, but I was just thinking that as this set has every other extra feature, the big cabinet with the doors, remote, power tuning, 3 speakers, you would think it would have UHF too. But there seem to be very few pre-64 sets with UHF, I've never had one.
Actually, a roundie I would really like, but probably never find is that remote controlled ctc-7:
http://audiokarma.org/forums/showthread.php?t=112468 According to the ad posted there the remote on that set also controls brightness and fine tuning in addition to what's on the ctc-10 remote I posted earlier.