Subtitles
Mid 30 here.
I was 27 or about that, lost my job, in a shitty appt, with my gf..
I had weird feedback on the subtitles on my tv. Kind of responding to what i said earlier in the day and whatnot. Even my gf saw it too and didn't understand a thing.. i could talk aloud and the person in the tv would respond to it or acted like i told him. Searched everywhere for a camera, microphone or anything related never found any. While i searched subtitles would go like, are you searching for a camera behind this for real? That was creepy as fuck.
Couldn't care less if you think i was paranoid tho:p but then ..my gf would have been in the same boat as me? Anyway moved, and it was all gone thankfully.