For several years, Canonical has been a day late and a dollar short when it comes to shipping real products. There were the Ubuntu Android devices announced almost 3 years ago, the switch to a tablet interface for the non-existent Ubuntu tablet and smartphone market (causing many current Ubuntu users to switch to Mint or Debian), and now Ubuntu TV, quickly thrown together using 3rd-party code, which Canonical claims will ship by the end of the year, despite not having a single manufacturer lined up.
At the same show, Lenovo raised the barrier to entry into the TV market with an 55" Android Ice Cream Sandwich TV. Comes with a built-in webcam, remote with microphone (for voice recognition) touch pad (for swiping, etc) and motion sensors (so you can use it like a Wiimote)
Canonical abandoning their "Android Execution Environment" for "The Search For More Bling" was a serious mistake. If you're going to offer the next generation of linux-based TVs or tablets, you need more than a pretty (inter)face. If you don't have Android support, you're simply not in the game.