I hope that Sci Fi does better with this series than they and Fox did with Sliders, which started with such promise. I love alternate history books (like the ones Turtledove writes). Here's the blurb:

SCI FI Channel announced that it is developing What If, a "speculative future" series that poses intriguing scenarios of alternate realities. The program, from NBC Universal Television Studio in association with New Line Television, asks, "What if a moment in time could change the world forever?"