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AT&T recently revealed that it would launch broadcast mobile TV services in May over Qualcomm’s MediaFLO network, in an effort to bolster revenue from services other than phone calls.

MediaFLO broadcasts live video and audio streams over the air, which are then captured by handsets with specifically designed Qualcomm chipsets. Unlike other mobile video streaming methods, MediaFLO doesn't use a carrier's wireless spectrum and is less taxing on the network. Instead, the broadcasts are beamed via spectrum Qualcomm owns.
The carriers have said in the past that a broadcast model is more economical than streaming long video clips on demand.

In addition to standard channels such as CBS Mobile, Comedy Central, ESPN Mobile TV, Fox Mobile, MTV, NBC News 2Go, NBC 2Go and Nickelodeon, AT&T boasts two exclusive channels, but declined to name them. However, one of AT&T’s two additional, exclusive channels is expected to include concerts from big-name artists.

AT&T will be 16 months behind Verizon Wireless in bringing its mobile TV service to market. The company originally planned to launch before the end of 2007, but pushed its plans back. The delay probably had little effect, though. Qualcomm, which sells technology licenses and chips for phones offering high-speed Web links, built the network to help kick-start the market for live television.

The move, which comes ahead of next week's CTIA Wireless industry trade show, represents another feature beyond voice calls and text messages that carriers are pushing in the hopes of augmenting their revenue streams.