London design studio ManvsMachine collaborated with Proud back in 2009 to rebrand the Sci Fi channel.
The idents and the general on-air look is simple, elegant and modern. I really like the contrast of the colourful elements against it's white setting. The idents are all very intriguing and have the sense of a revelling mystery about them, no doubt to reflect the type of programming shown on Syfy.
I recently went to hear Man vs. Machine speak at 'See No Evil' event in Old Street, London in April. They have have some great work to showcase so check them out.