My 5yo Chromecast is fine, never a problem but thought it might be time to upgrade.   Big mistake.   Brand new CC HD with Google TV cannot cast apart from very low res, constantly glitching, and repeatedly disconnecting.   I will refuse to pass this piece of junk onto anyone else, it's in the bin.   Only glad I kept the old one, no frills, does what it says on the box, no problem.   CC with Google TV is a massive scam.   Get your house in order, Google.