You are amazing, thank you so much! It all worked apart from the last one, which said it needs an output file specified so added -o after a quick search. I really appreciate the quick response to, I got in very quickly but only just managed to respond here.
One option is to get an IPTV service and use it with an app where you can record the shows on disk (like TiVo I think you guys use, heard that a lot on older TV shows lol). Will only record future shows but tbh, a lot gets repeated on their other channels (https://www.channel4.com/tv-guide).
Using a VPN is another option but I recently couldnt load the app while using a lesser known VPN from within the UK so they seem hot on blocking them.
Another option is rent a cheap VPS from in the UK to act as your own VPN.
All of their shows is on their app, and they have a pretty cheap ad free option if you can figure that out too.