Our friend "the Lost Mario Bro." noticed in a post at SciFi.com, that the Sci Fi Channel will be airing all 3 previously released Indiana Jones movies on May 18th as a lead up to the Indy 4 release.
The Sci Fi Channel will also be running the special, "Mystery of the Crystal Skulls" hosted by NBC news anchor Lester Holt at 9:00 pm on May 18th.
Click here for the full article though the Indy related tidbits are in the last 2 paragraphs.