Great game! The gameplay is innovative and intriguing. The game interested me so much that I went hunting for the secret channels, typing number after number...it was time consuming but I found them all!
If OP doesn't mind me posting them, here they are:
666
319
123
612
Not saying anything...except I'm really interested in what channel 666 means by that! ;)
**SPOILER BELOW**
((Op, do you need any help with the art of the game? You mentioned in 319 it took you forever to make it...))