I have s3 TiVo. When I add a season pass it takes at least 3 minutes before I can do anything. Would this be faster if I deleted some? If so is there a a way online I can delete them faster? Most of my season passes are for "first run" and will never run again I'm expecting delivery of xl4 in a few days to replace my S3. Do I go online to migrate SP's between boxes? Is it also a good idea to remove old SP's before I do this? Is their any pre- maintenance I should do? Do I get my thumb ratings moved over? Anything else I should know about switching?