Discovery Channel Canada’s Dino Week started off with a bang (pun intended), as Last Day of the Dinosaurs becomes the channel’s most watched special event broadcast.

The 90-minute documentary special kicked off Dino Week on Sunday, November 21, airing in four different formats – SD, HD, anaglyph 3D and active 3D. It drew in 685,000 viewers, with a combined reach of more than 2 million in its 8 p.m. to 9:30 p.m. (ET) timeslot.

It was also the top non-sports specialty program with A25-54 (293,000) and A18-49 (285,000).

Last Day will receive an encore presentation toward the end of Dino Week on Thursday, November 25 at 8 p.m. ET in SD on Discovery Channel and in HD on Discovery World HD. Those with red and blue anaglyph 3D glasses will also be able to watch the special in 3D SD at DiscoveryWorldHD.ca starting on Friday, November 26.

For a deeper look at the Canadian co-pro, check out Playback Daily’s interview with Discovery’s VP of programming Ken MacDonald.

Meanwhile, Dino Week continues with episodes of Prehistoric, which takes a look at what U.S. cities would have looked like in the time of the dinosaurs.