PiktTv on my AppleTV runs as smooh as butter. Using the latest release and using a wifi connection. Have you done an uninstall, restart the Apple TV then install the app?
Are you using a hard wired or wireless connection.
I think this is related to a bug with Apple's Zero Sign On. The workaround right now, if prompted for your TV provider during the reset/install process, select ‘Do not allow’.
If your Apple TV is already set up and you're having trouble with the Pik TV app, go to the Apple TV Home Screen, then navigate to Settings -> Users and Accounts -> Apple TV Accounts -> TV Provider -> Sign Out
The App works fine on my Apple TV, and that of many other folks. After base troubleshooting, replacing the device is a reasonable step.
Same here, only the Pik app is busted (seemingly when they changed to the purple icon).
Other apps like Global/CTV can steam live TV without issue.
I get it works fine for some people, that's cool. But there's enough of us complaining that it doesn't work, that there must be an issue.
Our app development team is aware of the issue and working to resolve it. It's not widespread, but I know that's of no consolation if it's not working for you. My apologies and thanks for your patience.
For what it's worth, I have the same problem. PikTv is unwatchable on two different apple tv's (one brand new) and my ipads, all other streaming apps (netflix, stacktv, prime, crave, plex, disney, etc) work fine.