I have a short lag in my WII when we play guitar hero. Started when we changed the TV. Everything else works - its very odd.

Sometimes when playing Guitar Hero on a LCD TV or some other types, there will be a small delay between what's shown on the screen and what's heard. You can go into the game options and set up manual calibration. It's a little rough around the edges, but it'll get the job done. Hope this helps!

both the red and white plugs have to be plugged into your tv. If your TV doesn't have 2 audio inputs, then you just need a $3.00 "Y" cord from radioshack and then you wil hear it. Bring in your cord with you and tell the cashier you need a Y cord with 2 females and 1 male.
Tools required: NONE

Usually the video lags behind the audio. The reason is the video, in many TVs, takes longer to process than the audio coming direct from the device. To solve this, the audio needs to be delayed. This can be done by 1. Using the tv audio output. Most TVs sync the audio to the picture and this 'synced' audio is available at the output jack of the tv. 2. Delay the audio coming out of the device. Many home receivers have a 'Lipsync' feature designed for this issue. The setting is usually between 50 to 500 milliseconds of delay, depending on the TVs video processing time.
I hope this is clear and can help.

press + to go to menu.
Go to options and select calibrate lag.
Follow instructions.

In the Guitar Hero video options there is a way you can Calibrate the lag between your Wii and your TV.

I think you're just missing the notes. :D

Try it calibrating it should help.

-Captain Jake

check this link for a complete matrix of which instruments work with which games on which consoles http://www.joystiq.com/Instrument-Compatibility-Matrix/

i couldn't get the console to see the guitar, so after making sure the the remotes were synched with the console individually, i pressed the reset on the console and then started guitar hero software before putting the remote in the guitar, making sure the first light remained lit in the remote. (am only using the guitar). so far so good, seems to have worked.

try callibrating tv game go to options>callibrate

if the audio works for regular tv

check to see if the av cable is in properly
or if the red and white leads are plugged in

Red and White leads

Scart

What kind of TV do you have? I've noticed that when I played GH 3 on my plasma TV it lagged until I calibrated it. You might need to change the TV scale to 480p since wii isn't high def. Hope this helps.