Hard to Follow Convention During 1st Night Tuesday July 27, 2004 7:01 AM By DAVID BAUDER AP Television Writer NEW YORK (AP) - If the nation's biggest broadcasters have chosen to make the political conventions at most a one-hour show, their smaller competitors and the Democrats seemed determined Monday not to cast doubt on that judgment. On the opening night of the Democratic convention, the party ensured the most emotional moments would occur during the 10 p.m. ET hour when ABC, CBS and NBC were on the air. They included a fiery speech by former President Clinton that ended just...