When does the reality show air? The ongoing saga of MacKenzie Phillips sex life continues of Oprah.  Now Chynna Phillips wants to get in on the action.

Usmagazine.com has now confirmed that Mac will be back on Oprah’s show on Friday.  And she will be joined by her half-sister Chynna Phillips, who, by the way, has a brand new album to promote. Of course she does.

LA Times says, the buzz is that Mackenzie will appear via satellite on Friday; Chynna will be live in the studio,

Chynna has openly said that she believes her sister. But she also says the news sent her into a depression.  ”A part of me died when I found out.”

Seriously, Oprah this is way too Jerry Springer. Oops, Maury Povich wants in on the action as well.