If you're still not satisfied with all the video content your iPod or your iPhone is packing, then you might want to take a look at the freeware program TubeTV. This nifty application allows you to basically search for, save, and convert YouTube's .flv videos to a suitable format for the Apple TV, iPhone, and iPod.

While Apple TV and iPhone already have YouTube support, TubeTV goes the extra mile by allowing you to save your favorite videos and add them permanently to your library. The built in search bar and web browser also allows easy access to any videos you want to look for on the Net.

TubeTV can also easily convert any YouTube video you've downloaded into high quality videos using the H.264 codec for either QuickTime or its Perian plug-ins.

Another good thing about the application is that it doesn't need an installer; just copy it to your Applications folder and launch it. It does, however, require the Perian plug-in if you want to convert your videos into a higher quality media format. You can visit the source link below more details on how to download and install TubeTV.

You can take a look at the summarized list of features TubeTV has below:

• Free!
  
• Built in browser with search bar for YouTube and Google Video movies.
• Support for many other sites which use flash video.
• Support for bookmarking movies (requires Mac OS X 10.5 Leopard or higher).
• Optional history of recently viewed movies (requires Mac OS X 10.5 Leopard or higher).
• Ability to download using the flash video cache if the entire movie has been loaded.
• "Download without watching" technology enables you to save a movie without first watching it.
• Auto export video as flv (flash video), or for Apple TV, Video iPod, the 3rd generation iPod nano, the iPod Touch, iPhone, or other generic cell phone. See full compatibility list below.
• Batch download.
• Batch convert existing movies from your Mac.
• Ability to add exported movies to iTunes with appropriate tags for smart playlist creation.
• Uses the high quality H.264 video codec for export (with exception of the generic cell phone setting).
• Option to grab URL or movie from your default browser (Safari, Firefox, Camino, or OmniWeb).
• Universal binary - Intel, PPC native; written with Cocoa.