Randomly changing channels

So I use tablo through the plex channel on my Apple TV 4 almost exclusively. Bought tablo shortly after the Apple TV 4 came out and am patiently awaiting the true app.

I am having a weird issue with the channel randomly changing once in awhile. I’ll be watching nfl on cbs and it randomly goes to the Spanish channel or just another channel in general. This is definitely not happening all of the time but once every few hours. Thinking it may be an issue due to playing through plex then through Apple TV but not sure since this is the only way I watch.

Anyone having a similar issue or know a fix?