[mythtv] EIT disable per card

[Tim Jordan]

Is there a way through the database or other of selectively disabling  
EIT scanning? I have 2 NOVA-t 500's and a usb2 NOVA-t and at the  
moment am rebooting every morning as the eit crawl through the night  
is causing the 500's drivers to break. The linuxtv site has this as an  
acknowledged problem.
If there isn't what would be the best way about doing this and if I  
did get my hands dirty and implement it is likely to be accepted?
My initial thoughts were an extra checkbox on the capturecard screen  
and subsequent setting in the capturecard setting (set to on by  
default to cover existing behaviour) which the eit crawl checks to see  
if the card is available for crawl.

Tim