Ok got the script working. Now the signal changes

However something is not working correctly... It still outputs a 16:9 signal eventhough the channel is broadcasting 4:3.
This is easily seen by the black pillars on each side which the Dreambox inserts (would normally be grey and changeable in the TV's menu)
This means that the image is shrinked horizontally for 4:3 content, plus it is not possible to zoom letterboxed 4:3 broadcasts by the aspect ratio button on the TV. It also means that the plasma will age quicker if a lot of 4:3 content is viewed as the grey color evens out the aging compared to the black pillar color.

Can this be fixed in the script? Thanks