There is a simple solution, you can watch live TV broadcasts as they happen using this
It seems to work very well. It shows you exactly what’s being broadcast, including adverts but about 4 seconds behind the broadcast version, so if you are watching Red Dwarf on Thursday 4th October at 9pm, and you hear your neighbour guffaw with laughter, four seconds later you could be doing the same, or of course you could be saying ‘well, it wasn’t that funny, blimey.’