Thanks to Lisa, Lindsey, Lisa, and anyone else who sent this in :)
There is an article on e-online about Christmas episodes of TV shows. Here is the link to the article: http://msn.eonline.com/Features/Features/Holiday2001/Tube/index3.html
And here is what the article said about Roswell
Roswell: Things are strange–relatively–when an autistic child presents Max (Jason Behr) with a drawing of a spaceship. Could this be Max’s long-lost child trying to make contact? Meanwhile, holiday fanatic Isabel (Katherine Heigl) enlists everyone’s help in attempting to create the perfect Christmas. UPN, Dec. 18, 9 p.m.