There are at least three known ways to access the commentaries:
- Press the "Audio" button on your DVD remote. This will cycle through the audio tracks (the commentary is usually English 2, and in the case of the extra commentary, English 3).
- If you're using a PC DVD player, you can select the audio track manually. In PowerDVD, right click on the DVD screen, move to the Audio menu, and check English 2/English 3.
- Finally, the "correct" way to do it (i.e. the way programmed into the discs) is to go to the language options menu for the episode in question and click on "Audio Commentary". This will enable the commentary but can be quite difficult to tell whether it's enabled or not.
Hope this helps, and welcome to PEEL.