Finally an answer that I know.  When I was looking for doc's on this
same topic I checed out this site:
http://www.9thtee.com/tivoupgrades.htm  This site has allot of infor on
obtaining parts for your TV.  But it also has links to website with info
about hacking your Tivo.  This site was also a good resource as well
http://hellcat.tyger.org/MFS/2.0/howto.html

Jason Lanpher
 
jlanpher at stealthnetworking.com
 
http://www.stealthnetworking.com
 

Remember there are only 10 types of people in this world.  Those who
understand Binary and those who don't.