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LOS ANGELES, CA - JUNE 30: TV personality Alex Trebek attends the 150th anniversary of Canada's Confederation at the Official Residence of Canada on June 30, 2017 in Los Angeles, California. (Photo by Emma McIntyre/Getty Images)

LOS ANGELES, CA - JUNE 30:  TV personality Alex Trebek attends the 150th anniversary of Canada's Confederation at the Official Residence of Canada on June 30, 2017 in Los Angeles, California.  (Photo by Emma McIntyre/Getty Images)

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LOS ANGELES, CA - APRIL 07: TV personality Alex Trebek attends the screening of 'The Bridge on The River Kwai' during the 2017 TCM Classic Film Festival on April 7, 2017 in Los Angeles, California. 26657_004 (Photo by Emma McIntyre/Getty Images for TCM)

LOS ANGELES, CA - APRIL 07:  TV personality Alex Trebek attends the screening of 'The Bridge on The River Kwai' during the 2017 TCM Classic Film Festival on April 7, 2017 in Los Angeles, California. 26657_004  (Photo by Emma McIntyre/Getty Images for TCM)

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LOS ANGELES, CA - JUNE 30: Consul General of Canada James Villeneuve (L) and TV personality Alex Trebek speak at the 150th anniversary of Canada's Confederation at the Official Residence of Canada on June 30, 2017 in Los Angeles, California. (Photo by Emma McIntyre/Getty Images)

LOS ANGELES, CA - JUNE 30:  Consul General of Canada James Villeneuve (L) and TV personality Alex Trebek speak at the 150th anniversary of Canada's Confederation at the Official Residence of Canada on June 30, 2017 in Los Angeles, California.  (Photo by Emma McIntyre/Getty Images)

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LOS ANGELES, CA - JUNE 30: TV host George Stroumboulopoulos (L) and TV personality Alex Trebek attend the 150th anniversary of Canada's Confederation at the Official Residence of Canada on June 30, 2017 in Los Angeles, California. (Photo by Emma McIntyre/Getty Images)

LOS ANGELES, CA - JUNE 30:  TV host George Stroumboulopoulos (L) and TV personality Alex Trebek attend the 150th anniversary of Canada's Confederation at the Official Residence of Canada on June 30, 2017 in Los Angeles, California.  (Photo by Emma McIntyre/Getty Images)