Portal/Portal 2 Easter egg (SSTV)

[barythrin]

I somehow never knew about this until watching some top easter egg game compilation the other night. (Turn your speakers down .. sstv while interesting for a minute it quite loud). Here's one persons video after decoding the transmissions. Apparently they were also in the original Portal or some update to the original Portal. Just found it to be an interesting easter egg in the game. Lots of little things all around (some folks also pointed out early but fake computers in the game too as amusing).