So, after spending an hour or two attempting to figure out where the hell UPC had moved Channel 4 to, I eventually found out that it was now being broadcast on 543 Mhz. I also found out that this wasn’t part of the standard list of A1 to A30 channels in the "pal-ireland" range. :(
Thankfully, I then found this Frequency to MythTV channel converter page; here’s the correct values to use on the MythWeb channels page:
- Freqid = 30
- Finetune = -4