It may be tied in with the fact that I have yet to see any of the Winter Olympics show up on the NBC app for broadband Internet on my television. The app aways states try later.
Evidently; having Comcast and NBC part of the same group doesn't help any in getting their act together for delivering the Olmpics over broadband in any half-way decent broadcast.
Thank you Andrew. It seems Comcast has been doing a better job with 4K delivery this time around with the Winter Olympics. Some initial problems have been cleared up already.