Seem to be some problem with new videos not parsing, ( https://www.youtube.com/watch?v=tUFxPUideHU could be becouse some number is 0 or null, like upvotes / downvotes? )
Currently all video searches get blocked by this video since it is always on-top https://www.youtube.com/watch?v=UKY3scPIMd8
( http://gdata.youtube.com/feeds/api/videos?q=epic+sax+guy&v=2&prettyprint=true&max-results=2 )
All searches will output "No relevant results were found. Try different search terms." since there is no "<yt:rating" in that video.
https://youtube.com/devicesupport
"Certain older YouTube apps will no longer be supported after April 2015
Devices affected: Select devices manufactured in 2012 and earlier, including Sony TVs & Blu-ray Discs, Panasonic TVs & Blu-ray Discs, older iOS devices, and devices running older versions of Google TV.
As we upgrade the YouTube Data API(http://youtube-eng.blogspot.se/2014/03/committing-to-youtube-data-api-v3_4.html) to bring more features, we’ll begin shutting down the old version on April 20, 2015. This will result in the current YouTube app not working on certain device models from 2012 and older.
We will continue to focus our efforts on improving our official YouTube app for TV which is available on most 2013 and newer Smart TVs and Blu-ray players, game consoles and streaming devices. You can find a list of our device partners"