My Roku tv was stolen is there any way to track it?
It's unlikely it can be directly tracked. You should go to the Roku account settings and unlink the TV so somebody can't use it with your account.
Go here: https://my.roku.com/account
and scroll down to near the bottom to unlink the device.
Also go to individual channels if your able to sign out of all devices do it. Then change passwords too. Like Netflix or Prime.