AppleTV

AppleTV streaming can have up to a 2 second delay. Imagine singing into your microphone and only hearing your voice two seconds later, after the lyrics are long gone, and no longer in sync with the song?

While I think it is technically possible to enable AppleTV streaming, it would not make sense unless your microphones were plugged into the same mixer as your TV, which is just about never the case. Almost always, the computer's audio goes out to the mixer, the mics go to the mixer, and the mixer goes out to the speakers.

In that case, with the video on a 2 second delay, the audio will be ahead of the video.

Currently, there is no feature for this in kJams, cuz everyone i've asked says "no, we do NOT hook the mics to the same amp that the TV is connected to". usually because the TV has built in speakers.

It is possible to use iTunes to send the song to AppleTV, but you'll still have a problem getting the audio to mix in correctly. To do that, export your karaoke to quicktime, then load the quicktime files into iTunes, and play them thru AppleTV that way. See the article on Exporting.