OK. Lets ramble...TCL 55" Roku Smart TV. Worked fine with Spectrum cable & TV package. Shut down Spectrum and tried AT&T Internet for one month. Not good. Went back to Spectrum for 200 meg Internet only. Sling full package at $55 month. That gets you a cloud based DVR.
So..........sumping is not so good. Remote is very slow to respond when using Sling. Sling constantly buffers, pixilates, occasionally just gets confused and dumps you back to TV's app menu and is just pretty much crap. While it's buffering can run speed test on computer and always 200+ download. Found a Roku forum and consensus was...use a Firestick. They felt somehow the constant Roku updates were somehow getting corrupted.
I'm about to give up on TV entirely. Spend most of my time on internet with TV as background noise anyway.
My rec, If you can get cable TV & Internet for 150ish $ a month, KEEP IT!