I think it's funny that nobody knows, but: Parsec Productions used this for "Slender - The Eight Pages". You can find it in the "sharedassets0.assets" file with exactly the same name ("tv_static_by_tbh_1138-d3jmbjq.gif"). Proove: i.imgur.com/WC27Byf.png
Yeah that's right, about 2 years ago i've browsed in the files while searching stuff in. Turns out it is & the same. These guys actually takes lots stuff from internet. Such as even slender the arrival, with a happy family photo.