By the way, this website allows you to make a DVD with loads of different test patterns:
http://techpreservation.dyndns.org/dvddl/testdisc.htm
One caveat: depending on the drive used to create the DVD, it may or may not play on any given DVD player. Mine plays on one of the four players in this house, not counting the drive used to create it.
I still use my pattern generator a lot, but the DVD comes in handy every once in a while.
Phil Nelson