Two new bits of video research out today: One from ABI Research saying 63 percent of U.S. online households watch video in their browsers, up from 32 percent a year ago. The other a projection from Gartner, which says IPTV services will grow to 19.6 million subscribers in 2008, or 1.1 percent of households worldwide.

Gartner’s estimate would amount to a 64 percent increase over 2007, and $4.5 billion in worldwide IPTV revenue in 2008, a 94 percent increase from 2007. And that’s withstanding, Gartner notes, increasing competition from YouTube, Joost, MySpace, Facebook, NeuLion, Apple TV, iPlayer, Hulu, Amazon Video on Demand, Vudu, Netflix, and Blockbuster.

Back to ABI, where analyst Michael Wolf, who sometimes writes for us, says increasing broadband speeds, Hollywood participation, and democratized production tools are all to blame for the rise of broadband video. Nearly half of respondents under 25, and 53 percent of respondents 25-29 said they watch long-form TV shows or movies online at least once a month. Somewhat predictably, three quarters of respondents over 65 have never watched TV or movies online.

ABI’s numbers are actually quite low compared to what we’ve heard. comScore said this month that 75 percent of the total U.S. Internet audience viewed online video in July.