i-Preview Tags

i-Preview Tags. Software tags inserted into line 21 of the vertical blanking interval ("VBI"), or any digital equivalent (including, without limitation, EIA-708-B data) of broadcast or cable television video signals using the Authoring Tools to cause TiVo Receivers to display user interface elements superimposed over video content where such user interface elements may be selected by the end user of a TiVo Receiver to schedule recordings or display Showcases