Wall discoloration

[jbunnelle]

Hi all,

Novice question maybe! I was mounting a power strip under the window sill behind my 1966 RCA CTC17 and noticed that the wall behind the curtain had turned a dark blueish color, which seems to have come from the set. TV is in the corner, angled, with a good 6+ inches between it and that section of the wall. It wiped off for the most part. Set stays cool since I have a fan clamped internally, aimed at the flyback, so this can't be from excessive heat. The fact that it is blue strikes me as strange. Even weirder, the white curtain is not stained, only the wall behind. Was definitely not there before so pretty sure set is responsible. Thanks!

Jim