o'brien on nbc. these combatants join "the tonight show with jay leno," "arsenio," and "nightline." >> it became a crowdedin the third corner, his ratings fading rapidly, arsenio hall. some tv writers think that arsenio could be the big loser in this free for all. >> when letterman came in, it essentially diluted arsenio's brand, because there were so many alternatives. >> i'm sad to see you go, because america is going to have a big chunk missing out of its existence. >> losing arsenio -- yeah, it was bad. he was the lone voice, gone. >> david letterman had the suits at nbc pausing for a moment. did we make the right choice? because he came out gangbusters and he was beating jay leno in the ratings. >> there's some people who say you blew it, that by picking leno to replace carson over letterman, that that was a big programming mistake. >> it was a shaky start. a really, really shaky first season start. >> well, it's true confessions time for actor hugh grant, who's trying hard to put his recent encounter with a hollywood prostitute behind him. >> when hugh grant was arrested, it was big, live action new