Unusual behavior of a kinescope TV

Question

TVs

Good afternoon, I have encountered an unusual problem, whose cause I myself cannot understand.
Given: TV funai tv-2000a mk10
What's wrong: the TV starts making noise when text enters the frame.
Video: (hard to hear, but alas, there is no camera at hand without turning off noise reduction): sdrv.ms/1kzZGCn
It is very interesting to know what is with it and what it is connected with.

Answer 1

Probably not just text, but a bright white color, which is almost never found in a normal image? Fuck it, overexerted, poor fellow ...

Answer 2

Where is the telescope?