Viewers struggling with the shutdown of analog broadcast TV signals by some stations this week can call a toll-free phone number for help.

AARP is operating a national call center to answer consumers' questions about digital TV. More than 400 stations nationwide stopped broadcasting analog signals Tuesday, including some in Illinois

The AARP help-line is 1-877-698-8068. English- and Spanish-language operators are available Monday through Friday from 7 a.m. to 9 p.m. Central.

The federal government mandated the end of analog broadcasts to make room on those frequencies for other uses. The deadline was pushed to June 12, but many stations decided to stick with the Feb. 17 shut-off.

A federal call center is also operating at 1-888-CALL-FCC.