Like the IE fixed background code on the Html Extras section, This code will do the same for MSNTV users.
Note: You can combine both of the "fixed" background codes in your <BODY> line of code to have it work on MSNTV and IE.
You must resize the background image to a width of 544 to make this code work on your web pages.
Click Here To See It In Action
Here is the short code to add to your <body> line.
nohtilebg novtilebg
Sample "body" line with the code in it.
<body bgcolor="#000000" text="#ffffff" link="#ffff00" vlink="ffff00" vlink="#ff0000" background="stars544.gif" nohtilebg novtilebg>