Bob Dole, as expected, said he will accept free TV time. In a statement Tuesday, the expected Republican party nominee said he favored a proposal from the Free TV for Straight Talk Coalition to air 10 speeches, 2 1/2 minutes each, on alternating weeknights during the final four weeks before the election. Mr. Dole, however, asked that President Clinton not be allowed to use the White House as a backdrop for his speeches. Free TV is a coalition that includes former TV anchor Walter Cronkite and others. The group is asking broadcasters to provide the free time.