Question: how to sync vizio tv to spectrum remote?
Answer: Turn on your TV.
Using the remote control, press TV once and then press and hold SETUP until the TV key blinks twice.
Enter 9 9 1. The TV key blinks twice.
Press 1 (the device code digit for your TV). The TV key blinks twice. ... 
Press and release the CH+ key continuously, then stop when the TV turns off. ... 
Press POWER.