YouTube just pushed an update to its iOS app adding the "send to TV" feature, which lets users pair their mobile phones with connected TVs.
YouTube announced the iOS update on Google+ this afternoon:
Have an iPhone or iPad and a Google TV? You can now play and control videos from your YouTube app for iOS on your TV, like a remote control for YouTube. Anyone on the same WiFi can join in to control the video or add videos to a playlist (Harlem Shake marathon anyone?). This automatic pairing feature is also available on the YouTube app for Android, and it’s coming to more TVs this year from LG, Sony, Panasonic and others. Check out youtube.com/yt/sendtotv to see how it works.
The "send to TV" feature is now available for iOS and Android, and on select connected TVs. The PS3 and Xbox have manual paring options. The feature is also coming to devices from Bang & Olufsen, LG, Panasonic and Sony, as well as Philips, Samsung, Sharp, Toshiba, Vizio, Western Digital and others later this year. YouTube is currently available on over 400 million devices. Over 25% of video viewing on YouTube comes from mobile devices.