Thanks for your response Andrew. Basically as I described originally. I get the same set of programs as when I typed in a 4K UHD search, but no 4K UHD section in On Demand, No 4K UHD choice in Ways To Watch on the Olympic Life example and the choice to record in 4K UHD Is not offered.
Some additional information on the 2018 Olympics and 4K available at the link below:
All Olympics 4K content on Comcast is offered On Demand.
Shame on you Comcast and NBC. ALL the little hockey girls across the USA get only ONE chance to see the women win gold? All because you want to make some more money? Shame on you. HD is not something everyone can afford. Shame on you.