Discovered YouTube Channels and have subscribed to some niche programming like: DRIVE, a worthwhile video source if you happen to lust for cars like the GT3 cup car. These are all short works because there is only so much time in the day that one can spend consuming media. Here’s a representative piece on Lowriders from Motortrend .  They are cinematic and skillfully done in the artistic vein of Top Gear — which has its own channel as well.  There are numerous categories from which to choose should automobilia not be your thing. You can immerse in Kinetic Art or Surfing or… whatever your interest.
Unfortunately you can not replicate the YouTube channel subscription experience in your living room on your HDTV. Â Not yet. Â A few 3rd parties using YouTube APIs are trying and some have tried but Google has locked down this functionality. It is probable that Google is seeking a monetization model.
TiVo has “Web Videos“, some of them in HD, that showcase the Internet connected TV. Example:  The excellent production of CNET video podcasts  offerings can be viewed via YouTube Channel but on your high definition TV via TiVo Season Pass the experience is complete. One can see what Google needs to achieve.