From this point on, you're pretty much free to do whatever you like, spruce it up a bit, play around, do what you like. Usually changing the oppacity on the TV Lines layer to about 30-50% is more visually appealing.
I added some depth using feathering to make it look kinda like a TV.
I hope the tutorial helps, ask whatever questions you like.
NOTE: Once you've done this procedure, you don't have to re-create the pattern anymore, just go into the alpha channel and continue on from step 8