I really recommend the three good takes approach as well. Getting one good take is not enough. We get three. That way if there's a glitch in the playback of one take, or some sort of audio drop out in another, our editors generally have three takes to choose from. Even when we shot on location recently, I recorded the audio once while sitting down outside and reading from the script and once while the actors were sitting in the car with the windows down after we'd shot the episode. The more takes the editor has to choose from, the better the end result will be.