IMO, line conditioners are waste of money, most electronics have power regulation circuits built in the power supply board.
Moving on, 4k is NOT a fad.
Calling 4k a fad would be like calling 1080p a fad. It's an increase in picture quality.
Creating a disc player is easy, but creating any type of broadcast TV will be difficult.
Consider that dish and directvs dishes have 3 sats, and not everything is in HD yet!
So that makes one wonder how they will go 4k without adding more satellites. I don't know much about satellite broadcasting, but I think they will have to launch sats that can transmit data at a faster speed for 4ktv.
Either that or have a 6 LNB dish,that wont look pretty.
Also, your gonna need a much bigger hard drive. Current one in the hopper is two terrabytes, were talking 10-15 TB, and that does not even exist yet.