Don't think I can help with the TV problem, but I use a Magic Eraser to clean off the spots. Don't rub very hard, to avoid damaging the surface, and then apply wax.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.