Technically, xmltv2html cannot be used with xmltv output grabbed from Schedules Direct unless and until xmltv2html is
listed as an approved application.  It should be easy to get it approved using the links at the URI below.

Quoting from http://www.schedulesdirect.org/approvedsoftware :

Other:
 Don't see your program listed here? If your software is free and/or uses an OSI-approved Open Source license, and doesn't
violate our Terms of Use or our Subscriber Agreement, please contact us and we will be happy to list it here. However,
until it has been approved, you may not use it with Schedules Direct.