Hi Pete,
Yes, the U8000F offers a built-in app store with hundreds of apps available to choose from.
For TV mounting and installation services, we recommend contacting your local Best Buy or visiting:
https://www.bestbuy.com/site/tv-home-theater-services/tv-mounting-packages/pcmcat748300648009.c?id=pcmcat748300648009#1
~ Samsung Advisor