Sarah Palin and her Big Gulp were seen on every Comcast channel in mid-Tennessee until technicians could force her off subscribers’ screens.

“If this had been an actual emergency, you would not be seeing Sarah Palin holding a Big Gulp while addressing the Conservative Political Action Conference convention….”

The former vice-presidential candidate got free extra publicity from Comcast cable systems serving middle Tennessee on Saturday night when a test of the emergency alert system went haywire and switched every Comcast channel to Gov. Palin’s speech given to a conservative political group.

Subscribers may have been amused until they discovered she was on every channel, and there was no way to get rid of her and back to regular programming until a Comcast technician could be called on to reset the system.

“The Comcast cable system serving middle Tennessee has experienced a problem with its emergency alert system,” Comcast spokeswoman Sara Joe Houghland said in an e-mailed statement. “Impacted customers had their equipment locked onto C-SPAN until Comcast personnel were able to resolve the problem shortly thereafter. The company is working diligently to find the root cause of the matter.”

Not diligently enough for irritated subscribers, some who missed post-season basketball games or network shows.

The Tennessean reports this is not the first time Comcast has had this problem:

• It happened again on Monday morning when a line of powerful storms moved through the area;
• A similar incident happened when a string of tornadoes hit the Nashville area in late January.

The problem seems to be the “end of warning/test”-signal not being processed properly by Comcast, which then keeps the warning active until the equipment is reset. In January, the newspaper reports the “end of message” disengage signal was missing altogether.

The Tennessee Association of Broadcasters have lost their patience and have asked the FCC to exclude local stations from being overridden by the EAS warning system.

Their argument is that any real emergency will likely be covered by local newsrooms well in advance of any weather or news messages dispatched through the EAS system.