Zap2it uses the Times Tribune tv listing data and every year around this time things get screwy. I use US zips because there is more info on Canadian programing than reaped with a Canadian location. But last week Redmills,NY dropped all Ottawa stations fron thier listings. So I switched to Ogdensburg,NY but then some listings went missing there. So now I'm using Ottawa-RogersDigital, It's less info but I've got a full grid for 13 days. Things should get back to normal soon.