"Do you think there will be enough revenue from advertising to keep all the tv channels going? After all, how many of us sit and watch the ads these days? I skip through them."
TV advertising is still effective for those of a certain age - and it does have its place.
.... but not on my TV!
I don't know what the future of TV is, but it's likely to incorporate a on-demand netflix-style streaming option. For example, if the BBC replaced all their channels with one which gave you access to all their programmes via the iPlayer, O_G's dream of having something decent to watch may just happen (assuming part of the problem is scheduling).
4OD and the ITVplayer have ads - the are intrusive and stupid, but it might be the future.
That - or you'll subscribe individually. I'd pay for CH4 without ads (probably not ITV though).