@nyev Could the TV be sending out some sort of interference? Could it be one of the components (doubtful). What kind of lights are in use near by? Is there some big eclectic using appliance near by? Micro wave tower near by?
Perhaps I missed it but have you tried another streamer?
’Round suppah time is when internet usage in residential areas is highest.
FYI I use starlink and that’s way up from the 12MB service before it.