A long time ago, I posted a thread in Unidentified media about a cartoon feating a dog detective. Well, someone recently messaged me on Reddit informing me of a French cartoon called "Geleuil et Lebon", known in English as "Delook and Sharpy". I soon realized that was indeed the show I was looking for.
I saw two or three episodes on TVO (maybe) when I was younger, so the English dub definitely aired in Canada. The show also aired in Turkey (https://www.cumhuriyetarsivi.com/katalog/192/sayfa/1999/12/10/16.xhtml), and Spain. (http://hemeroteca.lavanguardia.com/preview/2003/10/01/pagina-8/34043216/pdf.html) .
I saw two or three episodes on TVO when I was younger, so the English dub definitely aired in Canada. The show also aired in Turkey (https://www.cumhuriyetarsivi.com/katalog/192/sayfa/1999/12/10/16.xhtml), and Spain. (http://hemeroteca.lavanguardia.com/preview/2003/10/01/pagina-8/34043216/pdf.html) .
Sent the email, should get a reply in up to three business days. If anybody has a newspapers.com account, this page seems to say that Delook and Sharpy aired at 5:30 in Ottawa (according to the article text), but I can't see the actual page cause I don't have an account. www.newspapers.com/newspage/466504043/
On TVO, the show premiered September 3, 2001 and ran until January 4, 2002. If you want episodes titles and exact broadcast dates, consult the CRTC's broadcast logs. They're separated by month/year. Click a month to access a list of channel logs. TVO is listed under its call sign, CICA. Download the log and open it in a word editor. CTRL+F "Delook" to scroll through dates.
Canada's educational broadcasters tend to buy shows in bulk, so this may have also aired on SCN, Knowledge or Access.
I looked up the coloring pages website on the Wayback Machine again, and I found archives dating back to 2004. (The last time I looked it up I must have copied the URL down wrong.) But sadly, I didn't find any more info on the series.
Since you said that this cartoon aired in Tyrkey, I was pretty interested since I'm Turkish. So, when I checked the site, I expected to find a description of sorts. But all I did find was that it aired on 07:40 that day. And, even then, deciphering the broken Turkish in said site would be quite hard. But I will try to find more leads in the Turkish side...