Is one "TV Box" included in my plan?
If you mean "is one TV Box" included free in my plan, that would depend on what your contract says. Generally you pay for equipment separately, and the fee for equipment is subject to increases.
I see they have raised the rental fee for a TV Box 50%, seems excessive. I also see they raised the Broadcast TV fee 33%, also seems excessive. I see to get DVR service you must also pay for one TV Box.
Is there an Xfinity app I can install on my smart TVs and eliminate the TV box?