New gadgets are making it possible to watch live television on the go using mobile broadcast services by FLO TV and Mobile DTV. Here are four we like.

FLO TV MOBILE DTV
Mophie Juice Pack TV
This slim, 3.5-ounce iPhone case has a built-in antenna that receives live programming from 16 channels, including ABC Mobile, courtesy of FLO. The case, which comes with a USB cable for charging, can add four hours to the iPhone's battery life.
COST: $150, plus $15 a month for a FLO subscription
Valups Tivizen
The 2.5-ounce Tivizen has a built-in antenna that transmits live TV to laptops, the iPod Touch, and a variety of smartphones via Wi-Fi. It works with Mobile DTV's service, which is free but currently broadcasts only a few channels in select cities, including New York.
COST: $149
Flo TV Personal Television
Don't have a smartphone? FLO's branded mobile TV player has a 3.5-inch touchscreen, stereo speakers, and a built-in headphone jack. The 5.5-ounce device comes with earbuds and a micro-USB charger.
COST: $199 with a free year of ABC, CBS, NBC, and Fox
LG DVD + Live Mobile DTV
LG's multitasking device plays DVDs, CDs, and MP3s, as well as Mobile DTV. Weighing in at 2.5 pounds, it has a 7-inch wide-screen display, stereo speakers, and dual headphone jacks. It comes with a remote control and an AC adapter.
COST: $250