Sue...you can install an inverter that will allow your TV(s) to work with no shore power. Lots here do this and it isn't too complicated of a task. You viewing time would be limited without running the truck engine, depending on how much power your TV draws, but it could be done. It would also allow you to watch movies when traveling along without having to run the generator.
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
There are many good tools for learning about adding solar to RVs. Most reputable companies will have links on their web site. Choose high quality components and youíll be fine. I chose to use Renogy and Iím very pleased. I installed a single 80W panel as my only interest is in maintaining my coach and chassis batteries while in storage. I chose a 20A MPPT controller and bigger wires so that I can add another panel if I ever see a need. Probably will as itís cheap and hereís no real downside to having more than you think you need.