As one of the pre-show characters mentions, this movie has nothing to do with pods or people (or, as it turns out, potatoes). The movie is Spanish, dubbed in English. It is about a space creature that lands on Earth. It (and its offspring) begin terrorizing some of the local wildlife (i.e. humans). Eventually the humans let it go back into the forest and just forget about all the people it's killed. The writers of the television show must've seen the MST3K version because the only reference to potatoes is by one of the heckling robots (in reference to the poorly done special effects for the aliens' appearance).
Favorite lines: L.A. police department; cameraman looking the wrong way; Smuckers; Rennaissance Faire; data stream; breakfast getting cold; potatoes; vacuum attachments; burning oil; keep her away from the animals; Trumpy dumpy. The many references to McCloud  were only amusing because of how frequently they came up.
 See my post Lillian's First Hallowe'en.
 See http://en.wikipedia.org/wiki/McCloud (TV series)#In popular culture.
Russet Burbank Potato is by phil.lees, available at http://www.flickr.com/photos/lastappetite/2408891127/.