link1896,
The "failed to create database" error appears maybe... because the database already exists and therefore it cannot be created again.
One reason for that is that even if you uninstall SQL Server, the database you created will still remain in data subfolder, as the uninstall process of Windows is not complete. You do not see it under SQL Server management console, but it is still there... To clean up, you need to go in Programmes\Microsoft SQL Server\MSSQL.1\MSSQL\Data and check. If it is there, well... the best (what I did) is to complete SQL Server uninstallation by removing all Microsoft SQL Server folders and sub-folders and then re-install SQL Server.
Then you will of course need to reinstall TV Server, but that is a snap...
If TVLibrary DB is not there, you may want to have a look at Logs folder under Programmes\Microsoft SQL Server\MSSQL.1\MSSQL\, there are ERRORLOG files worth reading...
Hope it helps, good luck,
Alexis.