Blanking VBI data on an old set

[zenith2134]

Hi, just curious to see if anyone has successfully figured out how to modify an old tv so that the VBI information is properly blanked? It can be such a PITA with DVD's and even OTA tv sometimes. My main problem is with my XL100, it shows about 3 inches of data at the top on PBS and sometimes Fox.

Also, it'll be interesting to see if the ATSC converter boxes will be moddable (I presume they too will have this issue with my tv, since the data is probably Teletext or XDS stuff, which would work with 90s tv's)