in 60 seconds
Is the RUB for me.
So when I turn on my TV (that is who that IP address is) it queries the internet > 1000 times in 60 seconds?
But not always.
What make and model TV is it? Try searching for it and seeing if others (eg those running firewalls or Pi-holes) are seeing queries too. It's most likely that the TV really is doing that. Some smart TVs (and other devices like Roku) generate a lot of queries trying to phone home to report stats or check for updates. Pi-hole just reports what it sees.