NBC announced some time slot and premiere date shuffling during the current Television Critics’ Association tour that will have a ripple effect on Canadian broadcasters’ fall skeds. Citytv has already made one change, and several Global shows could be affected. CTV is not affected by the changes.

NBC is moving the new drama Chuck (pictured) from the Tuesday 9 pm time slot to Monday at 8 pm – using it as a lead-in for Heroes and Journeyman – two shows on Global in Canada. For Chuck, Citytv will follow suit, in order to keep the show’s broadcast in simulcast.

The change, however, leaves Citytv’s Tuesday 9 pm time slot open and displaces the new show Blood Ties, which Citytv had previously planned to premiere Mondays at 8 pm starting August 20. The Citytv sked will see further revisions, but the programming peeps there may wait until the TCA sessions are done to announce any new changes.

The movement of Chuck on NBC’s sked doesn’t affect Global in Canada, which plans to use FOX’s Prison Break as the 8 pm lead in to NBC’s Heroes and Journeyman on Mondays. But other changes made by NBC will.

NBC is moving Deal or No Deal‘s Monday 8 pm edition to Friday at 8 pm, where it will lead in to Friday Night Lights at 9 pm, followed by Las Vegas at 10 pm. Global had skedded Friday Night Lights as its Friday 8 pm lead-in to Las Vegas at 9 pm and Numb3rs at 10 pm. The Singing Bee (currently on E!/CH in Canada) will also move to Tuesday 9:30 pm time slot, leading out of an expanded 90-minute version of its reality show The Biggest Loser (Tuesday at 8 pm).

Global has not yet announced any revisions to its fall sked.

Links to MiC‘s regional and national grids for the Fall 2007 season can be found here: http://www.mediaincanada.com/articles/mic/20070713/regionalgrids.html. The grids will soon be updated for future publication.