[Rich]

I think it would be hard for them to add advertising to the stream, as it's basically a live stream of your source.

Additional content such as an advertisement in the stream would bugger up the rest of the stream. It's not like a recording that they can simply append advertising and make one particular show run longer.

I don't think that the Slingbox hardware has enough storage to support this, it has enough for buffering, but probably not enough for extending content.

I could be wrong of course.

If there was any advertising, it could be a one time thing as you first go to start a stream, or perhaps as you switch a channel, or as any rebuffering occurs, but probably not during a live stream.

Of course they could force it to occur, but then customers would loose content at that time and it would be so annoying people would stop using it! Imagine if it occurred right as a touchdown was to occur, how happy would you be?!?!? Probably won't happen!