Steve Gregg contineus to show how the Olivet Discourse was speaking of the Great Tribulation to come on "this generation", the Jews of the 1st century, culminating in the destruction of Jerusalem in 70 AD. Many futurists say this prophecy is yet to be fulfilled because the stars have not fallen from heaven, etc. But this is apocalyptic literature, that was common of Old Testament predictions of the destruction of nations that are known to have taken place historically.
For more teaching on the Olivet Discourse, Steve has verse by teaching through Matthew, just go down to Matthew 24, as well as Mark - download the lectures on chapter 13.
You may also want to see Steve's classes on the book of Revelation.
The Eschatology audio series also may be downloaded here.
Steve Gregg's Olivet Discourse Parallel | Download a Copy
My notes on the Olivet Discourse, taken from Steve Gregg and a little of Hank Hanegraaff, Gary DeMar and I think a bit of Ken Gentry. | Download a Copy
Right click here and Save to download a student's detailed notes of Steve's eschatology series. They are also embedded below. His notes on this lecture are on pages 98-107.