Here are the top-ranked shows in Canada (for all persons 2+; all times ET), according to BBM, for August 15 to 21, 2011:

Monday: Monday night viewership went to CTV Evening News at 6 p.m., attracting an average of 1.393 million viewers for the week. The CTV National News at 11 p.m. was not far behind, with 1.121 million viewers.

Tuesday: Once again, CTV Evening News at 6 p.m. took the prime spot on the list with 1.393 million viewers and Combat Hospital on Global at 11 p.m. came in second place with 1.375 million viewers.

Wednesday: Big Brother 13 on Global at 8 p.m. came in at #1 for Wednesday night with 1.492 million viewers. CTV Evening News at 6 p.m. pulled 1.393 million viewers, sitting slightly below at #2.

Thursday: Reality show Big Brother 13 on Global at 9 p.m. won top spot for the night and the week, with 1.635 million viewers. Still neck-and-neck is CTV Evening News at 6 p.m., which attracted 1.393 million viewers for the night.

Friday: CTV Evening News at 6 pm garnered 1.393 million viewers, putting it in the #1 spot for the night. Flashpoint on CTV at 8 p.m. followed behind with 1.313 million viewers.

Saturday: CTV National News at 11 p.m. was placed at the top of Saturday night programming with 1.121 million viewers. News came in #2 as well, with CTV Evening News Weekend at 6 p.m. attracting 1.019 million viewers .

Sunday: Big Brother 13 on Global at 8 p.m. took its third and last win for the week with 1.620 million viewers. The #2 spot went to the Big Bang Theory on CTV at 7 p.m. with 1.163 million viewers.