Possible to get feed of user's uploaded+favorited videos?

I know how to get a feed of the videos a user uploaded:

http://gdata.youtube.com/feeds/base/users/KeepWatchingTheSkies/uploads?alt=rss&v=2&orderby=published&client=ytapi-youtube-profile

and I know how to get a feed of the videos a user favorited:

http://gdata.youtube.com/feeds/base/users/KeepWatchingTheSkies/favorites?alt=rss&v=2&orderby=published&client=ytapi-youtube-profile

but is there any way to get a combined feed containing both uploads and favorites?

I can try to combine them manually, but if it's possible to get an already-combined feed from YouTube, that would be preferable.