It depends on where you lived. Many markets around the country had similar "Dialing For Dollars" like the one in Houston, others were slightly different, but the emphesis is to give viewers a chance to win money if they knew the amount of the jackpot and a number and direction (up or down) as determined by the spin of two wheels.
El Paso, TX also had Dialing For Dollars for many many years. Longtime KTSM Channel 9 Weatherman Ted Bender, who is among the very few weathermen to use the same exact weather symbols that the National Weather Service uses during the weather broadcasts on Channel 9, hosted Dialing For Dollars at 10:05 AM until around the early 1980s or so. Ted would give four people a chance to win, sometimes six, it depends on how the 25-minute program progressed, and midway between the calls, he would interview a key figure in the city. Ted would call people, like the Houston program, whom are listed in the white pages not only for the El Paso 915 area code, but for the Las Cruces, NM area (505 area code).
Ted Bender, who is in his 70s, is now retired from television, and is alive and well last I heard.