Good point, so depends on what your target device is. For my iPod, I typically transcode 16:9 shows at a variable bit rate that averages out to about 350 kbps total, including AAC audio. A 1-hour show (i.e. 45 minutes) is typically ~120 MB. That's about 1/5-1/6 the size of iTunes HD videos, but frankly I can't tell the difference when I'm viewing them on an iPod or iPhone (3Gs). I size them at 480x272. Anything with a larger display, like an iPad or laptop, would require higher resolution and at least a clean 1 mbps, IMO, unless they can be "stream copied" and viewed as the download is in progress, as Scott suggests above ^^^. Just my .02.