CHEM-DT is the TVA owned-and-operated television station in Trois-Rivières, Quebec, Canada.

It broadcasts a high-definition digital signal on VHF channel 8 from a transmitter on Rue Principale in Notre-Dame-du-Mont-Carmel.

It was originally a semi-satellite of CHLT-TV in Sherbrooke, and has been a TVA station for its entire existence.

Sometime in the 1980s, CHEM severed the electronic umbilical cord with CHLT and became a full-fledged station.

Télé-Metropole, owner of TVA flagship station CFTM-TV in Montreal, bought Pathonic in 1989, and since then CHEM has essentially been a semi-satellite of CFTM.