Q: Apple TV flickers when using AirPlay

Hello Oldchipper,

Congratulations on your new Apple TV. I understand that everything is working fine for the most part, but when you do AirPlay Mirroring, the video starts to flicker. Let's see if we can get that fixed for you.

I would start with taking a look at the two articles below. The first one is based on the connection to your TV and troubleshooting any video issue. The second article will be more of troubleshooting AirPlay Mirroring and it may be due to a Network Lag.

Apple TV (2nd and 3rd generation): Troubleshooting video issues
https://support.apple.com/en-us/HT203782

Get help using AirPlay and AirPlay Mirroring on your iPhone, iPad, or iPod touch
https://support.apple.com/en-us/HT204291

Go over all the troubleshooting option and let me know if this works out for you or if you are still having issues with AirPlay Mirroring. 

Take care