The crowning of Gatineau, QC’s Eva Avila as the next Canadian Idol drew 2.3 million viewers for the 90-minute finale on CTV, down from last year’s 2.7 million total for Calgary’s Melissa O’Neil.

But gains were made in la belle province, where nearly half a million Quebecers – the most ever for a Canadian Idol episode – tuned in for the Sept. 17 extravaganza. Avila is the first-ever Quebecer to win the national competition.

Over at Global, the two-part finale of the lead-singer competition Rock Star: Supernova on Sept. 12 and 13 brought in 1.4 million viewers to both nights, as 29-year-old Toronto rocker Lukas Rossi was named front man for a new group that includes Tommy Lee, Gilby Clarke and Jason Newsted.

Rock Star helped Global make up some ground on CTV, placing as one of four Global shows in the top 10 for the week of Sept. 11-17, according to BBM.

The controversial Survivor: Cook Islands was at the top of that list, with more than three million viewers tuning in at 8 p.m. on Sept. 14 to see four racially divided teams compete in the show’s 13th edition opener.

The second episode, on Sept. 21, dipped to 2.6 million, partially due to the highly anticipated debut of Grey’s Anatomy, which pulled in two million viewers in the same timeslot on CTV. However, the network aired episode two that night in error. CTV has since apologized to viewers and rescheduled its premiere for Sept. 28.

Other hot CTV premieres on Sept. 21 included CSI at 9 p.m., with 3.6 million viewers, and ER at 10 p.m., posting 2.3 million – roughly a million more than the premiere of the James Woods legal drama Shark, in the same timeslot on Global.

CBC’s highly touted doc series Hockey: A People’s History – with an average viewership of 390,000 on Sept. 24 – was no match for the women of Wisteria Lane, with the season premiere of CTV’s Desperate Housewives raking in 2.7 million viewers.

Still with CBC, Brad Peyton’s stop-motion animation series What It’s Like Being Alone finished its season on Sept. 18, averaging a disappointing 163,000 viewers for back-to-back episodes.

While the final episode of the three-part CBC political miniseries René Lévesque aired to a bleak 131,000 viewers Sept. 21 in English Canada, the French-language version of the drama fared better in Quebec, with 521,000 tuning in for part one Sept. 14 on Radio-Canada.

The Ceeb has a few more hit hopefuls up its sleeve. Rumours, a half-hour comedy about the lives and loves of employees at a Toronto women’s gossip magazine, is set to premiere Oct. 9 at 9 p.m., while Chris Haddock’s crime series Intelligence debuts Oct. 10 in the same timeslot.

Jozi-H, a new 13-part medical drama set in Johannesburg, South Africa, premieres Oct. 13 at 9 p.m. on the Ceeb.