At least You Tube is gaining 4k at more than 10 fold each year, and quality of programing is improving.
Amazon Prime, Netflix, You Tube Red , etc. are all expanding their lead on 4K programing over broadband with much more reliable equipment than Comcast.
However; Comcast still leads in raising prices while delivering lower quality video since going through conversion to MPEG 4.
I hope they get their act together soon.