Ethernet TV signal to router to powerline to TV ?

Can this be done ? My internet provider supplies free Tv channels most don’t know about which can be rec’d with a QAM tuner. So I put in a splitter between the modem & router and ran a coax to the TV. That works fine. But I have another TV upstairs & I want to use my wireless powerline adapters & D link router but it won’t work. Tried to use nfusion box just for connection to powerline adapter and TV but no luck. I realize it’s probably a stupid question but can anyone straighten me out ? Many Thanks !