An internet search reintroduced me to the venerable Ramsey Electronics. The Web site brought a smile to my face with things like a DTMF decoder and relay board, broadcast-quality FM transmitters and, to my delight, a short-range TV-transmitter kit, the TV6C. The kit cost $39.95 and arrived quickly. The quality was good—great, actually, as compared to many of the things I've seen imported from Hong Kong with untranslated instructions. The only issue was that both of the kits I ordered came with an extra capacitor of around 22 uF and were short one resistor of around 22 kOhm. Fortunately, I actually have a parts drawer with spare 22kOhm resistors in it.