To be brutally honest, I don't think it's been a vintage year for Christmas telly. But there have been one or two things worth seeing. If you want to add a bit more flexibility to your TV viewing experience I can recommend get-iplayer. I first found out about this nifty command-line powered program in a Raspberry Pi magazine. You can use the program to download and transcode BBC TV programs from iPlayer on your Pi, but there are also versions for Windows 10 and and Mac.
It works really well, once you've got your head around the command line interface.
Update: You can get a free copy of that Raspberry Pi magazine here.