WORTH NOTING ON TV

* FRIDAY

...talking with David Frost (PBS, 9-10 p.m.): Whether or not he personally made country music an internationally popular crossover form, as some fans claim, Frost's guest is unequivocally a superstar. For the past two years, Garth Brooks has been outselling mainstream pop names like Whitney Houston and Michael Jackson, even before the latter's legal troubles. We're talking 30 million albums here (a country-music record), as well as a host of top prizes. This spring he begins a European tour, starting with eight performances in Dublin that are already sold out.

Brooks is an unusual guest for Frost, but he makes the same kind of pointed remarks on a range of topics that is typical of Frost's long and deceptively casual interviews. Brooks challenges the sincerity and honesty of some of the new record companies flocking to Nashville these days, for instance. And he sings one of his compositions, a song not yet recorded and not heard widely before this. * SUNDAY

Super Bowl (NBC, 6 p.m., EST to conclusion): This year's game - aired live from from Atlanta's Georgia Dome - is a first in Super Bowl history: The same two teams are back for the second year in a row - the Dallas Cowboys and the Buffalo Bills.

Last year the Cowboys decimated the Bills 52-17. Yet in the first part of this season the Cowboys lost to the Bills 13-to-10. But in the championship games determining who would end up playing on Super Sunday, both teams romped, Dallas beating the San Francisco 49ers, 38-21, and the Bills knocking off the Kansas City Chiefs, 30-13.

A pregame show airs on NBC from 4 to 6 p.m., EST. * MONDAY

Viewer Call-in (C-Span, 6:30-8 p.m., EST): Special program about the Department of Agriculture, with members of the House and Senate Appropriations Committees - along with journalists and scholars - fielding questions by phone about the appropriations process and other topics.

Please check local listings for these programs.