Select the "Special Features" option at the main menu. Highlight the "Tom Baker Interview" option and press Left to the Doctor Who logo. Press Enter to view a commercial for a Doctor Who Exhibition.
Alternate title sequence
Select the "Special Features" option at the main menu. Press Down to highlight the "Delaware Opening Titles" option, then press Left to highlight a hidden Doctor Who logo. Press Enter to view an alternate title sequence.
Hidden clip
Select the "Subtitles" option at the main menu. Press Left to highlight a hidden Doctor Who logo. Press Enter to view a pre-production countdown.