I've just downloaded now TV player onto my windows 10 laptop. Can access the now TV main menu but cant see where BBC, CH 4 etc channels are???
The NowTV player is just a bit of software to watch NowTV from their website with your internet browser on a PC or Mac.
The NowTV player is not like the NowTV Boxes or Stick which has third party Apps available on them such has BBC iPlayer, ITV Hub etc.
If you are interested in BBC, ITV, All 4, My 5 content to watch on your PC then you need to go to the relevant websites using your internet browser search engine yourself.