how do I create a RSS feed for Yahoo video search results?

I'm not finding an obvious way to create a RSS feed for a Yahoo video search result. (It can be done for a Google video search.)

I'm not finding a "subscribe" or "RSS" link on the video search results page. I searched the three major search engines for instructions how to do it, and I'm not finding a clearly written set of instructions for how to accomplish this for Yahoo.

I'm still becoming familiar with using Yahoo Pipes, and have tried a few things there to see if I can generate a feed, but as yet to no avail.

I'm not giving up unless someone tells me that it isn't possible. Maybe it's even just a matter of making modifications to the URL for the search results page?

Anyway, is it possible to do this? if so, what's the procedure? Thanks