usually a tv that doesn't "see" video on the S-video will not even "switch" to it. It just goes to the next Svideo, RCA etc..
Make sure your cable is not damaged. (on both ends) Does the svideo source and svideo cable work with another tv or video device?
From the Manual: " WHO•INPUT In TV mode, press WHO•INPUT to toggle through the available Video Input
channels (VID/SVID and the current channel). In SAT mode, press to select available channel lists.
Using the WHO•INPUT Button
Use the WHO•INPUT button to toggle through the available input sources (VID and the current
channel) and view the content from the component you have connected to the TV.
1. Press TV to place the remote in TV mode. Make sure that the content from the component is
2. Press WHO•INPUT to tune to the available input source and view the component.
3. Press WHO•INPUT again to tune back to the channel you were previously watching. "