If you are successful you will alienate every potential viewer that has a genetically hardwired desire to watch programming in the original aspect ratio. Actors stretched into short, fat Cartman representations will really put off most of your audience.
The group you belong to - Black Bar Haters Anonymous - are already forcing 4:3 to widescreen, so having it done through the coding of the channel is overly redundant and may result in actors taking on the shape of elongated manhole covers with eyes or Stewie Griffin.
As a personal favor to me, if you are able to make this happen, please include your cinema de widescreen favela screenshots in the channel, so when seeing them there will be no danger that I would actually install your channel.
Thanks
Tony
Roku 2 HD
www.youtube.com/user/TheFishMojo