Apologies for the delay...believe it or not I have just returned from a Wurzels gig over in Harlow..and Alex came and had to sit through it..!!
Glen, I am fairly sure your cable box wont have a rf output, can you check?
If it doesnt then as Arran says you need a modulator...and your in luck..I have some leftover modulators which you will never see for sale in the UK because I had them built to my UK specification for a pub quiz project we did by an American company.
My modulators have two audio/video inputs, rf in and out with gain control, plus a video/audio loopthrough....and channel selection via front panel buttons (not twiddly screwdrivers), so one of my mods would do the job and replace the one you have.
Regarding the IR control you need one of these
http://www.thedigiboxshop.com/global-tv ... u-inc.htmlDont buy it from there I can do it cheaper, and the bloke used to work for me!
Let me know and I'll put the price together.
A