What can I do? How can I speed up the audio or delay the video?
Best answer by User149518
So coming from my cable box, I have connected the HDMI chord (for video) directly to the TV and the toslink optical chord (for audio) directly to the sonos playbar. And when I want to watch apps like youtube, hulu, netflix, amazon prime etc etc, I remove the HDMI and toslink chords from the cable box and connect them in the same fashion to a Roku Ultra I purchased. It's not an elegant solution but by directly routing the audio from the source to the sound bar and bypassing the tv, I have fixed my lip synch problem. It definitely sucks having to connect and disconnect the chords each time you switch back and forth between the cable box and Roku and it's silly I had to buy a Roku instead of using all the apps that were already included in my smart tv but it is what it is. It's cheaper to do this than have to buy an all new 5.1 surround sound system and tear up drywall to run wires around the room.
But if anyone does find an HDMI switch that offers full 4K video capability, just shoot me a private message to let me know.