I actually watched Nightline a few times over the past couple weeks. Wow, talk about taking a dive. The show has become more of an entertainment/gossip show than a news program. They're reporting on hip-hop producers and British reality TV shows. They do put a few serious topics in to pay lip service to hard journalism, but let's see how long that lasts.
In fact, ABC News is dominated by these infotainment shows: 20/20, Primetime...and now Nightline has become one of them.
I wouldn't be surprised if John Tesh takes over the anchor position at World News Tonight some time soon.