I am not sure when Major Manufacturers and vendors will display their products, but it is usually all day starting I think on Thursday-Sat, could be earlier. Also several presentations are scheduled for Friday 28 June:
7:00am TTML(TCA's forum Toy Train Mailing List) and other online forums
1:00pm Author Bob Osterhoff will discuss "Inside the History of Lionel Trains:
Documenting the Journey"
2:00pm Greg Stout of Stout Auctions will present "liquidation of Estate Collections" and
"Proper Storage of Trains"
3:00pm Joseph Lechner, Moderator of the TTML will present :TCA, Internet and You.
Sat 29 June
8:00am Clem Clement will discuss "Standards; Telling Originals from Repaints
and Reproductions"
9:00am J. Don Reece from Lionel
Paul Edgar
All of the above is in the Meremac Room