The Television Show That Could
Yes, there is a Good Omens television miniseries. Yes, this is a real thing.
As this website is no longer being updated, I'm not going to include any extra information on this page until the actual miniseries is aired, over, and done with. Just so that I only have to update this page once. ;) But, for the record: Yes, this is a thing, and it is happening. To keep up with the latest news about the television adaptation of Good Omens I would recommend following the lower_tadfield community on livejournal.
Before there was a proper Good Omens miniseries, however, Crowley did make a television appearance on an American show that some of you might have heard of before...
The demon Crowley from the American television dramedy Supernatural bears a striking resemblance to Crowley from Good Omens. So much so, in fact, that many fans have speculated that Supernatural's Crowley is deliberately intended to be an obvious homage to the Crowley from Good Omens. I even recall that once I read in some livejournal commentary that either Pratchett or Gaiman confirmed that Supernatural's Crowley IS actually the same character from Good Omens, although I was never able to find a source to substantiate that rumor.
Anyway, I'm not going to provide much information about Supernatural's Crowley here, because the Supernatural wiki already does a fantastic job of covering all of the bases. For the interested, here is also an excellent blog post about Good Omens written for Supernatural fans.
Important Note: Page numbers in reference to quotations from the book refer to the 1996 Ace mass-market paperback edition. Disclaimer: Crowley, Aziraphale, and Good Omens are owned and copyrighted by Neil Gaiman and Terry Pratchett. Excerpts and quotes from the novel Good Omens used throughout this site are reproduced without legal permission, for which I can only hang my head sheepishly and apologize. However, this is a FANSITE, meant in the name of fun, and not intended to make a profit. The lovely model in this site's header graphic is an endangered Eastern Indigo Snake, in a photograph courtesy of SeaWorld.org. Brushes used in the header graphic are courtesy of Paper Flowers.