SC
SirCalgary

London/UK Riots Coverage (Sky News/BBC News Channel)

In 2010 when the G20 riots happened in Toronto, some stations relied on a suitcase/backback transmit units to get live video on the air from the riot areas. They transmitted over 3G cell phone networks, picture quality wasn't too bad either, little muddy at times but in the daytime it looked fine. Same station still uses them for their morning show when they want to get video of a traffic accident/transit incident back to the station quickly but without sending the microwave trucks out.

Another station in Toronto - using the same technology I believe - transmits video from a moving vehicle. The reporter sits in the passenger seat in the front and looks at the driver's direction where a camera is mounted just above. The quality is okay - the vehicles are also outfitted with microwave equipment to transmit from. They also had live video from a moving streetcar at one point.