TitanTV television listing guide stored in an XML formatted plain-text file. These files store in-progress programming information on one or more television programs.

The TVVI format is used by the TitanTV television listing service, and each file holds the following information on each program:

- station (E.g 'dotwhatTV')
- channel (E.g '5')
- mode (E.g 'analog')
- program title (E.g 'TitanTV')
- program description (E.g 'Information on TitanTV')
- episode title (E.g 'Introduction')
- start date (E.g '20101101')
- start time (E.g '23:15')
- end date (E.g '20101101')
- end time (E.g '23:45')
- duration (E.g '00:30')
- destination (E.g 'dvd')

.TVVI files should not be confused with .TVPI files, which provide listing information on future programming.