I don't know how to use the mask effect to make everything B/W except one color, but I sure would be interested in learning how it's done in Vegas.
As for the video, I can relate to that. I once had a used Heathkit HF radio transceiver that I bought at a flea market, that I could never get to work right. After several component replacement episodes I threw it on the floor...smashed it with a 12 pound sledge hammer, then threw it through the wood paneling on a wall clear into the stud work. Actually, I felt much better after that. Of course, that was many years ago and I am now on a regular medication that keeps me more level - smile.