@cordcutternewbi
You should be able to switch your Roku devices between TVs with ease and without factory resetting.
The Ultra should automatically detect the new display rate.
These devices are meant to be portable and used on different tvs and different networks.
Re: factory reset, normally reset them on the device you plan on using it on. Access the factory reset through the advanced settings or press and hold the Reset button for 30+ seconds.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102