Quebecor CEO Pierre Karl Péladeau is expected to lift the veil in Toronto Tuesday on his plans to launch a conservative television network.

The billionaire media baron has called a press conference at the Toronto Sun building to announce a "new investment in Canadian media."

Quebecor spokesman Serge Sasseville declined to make any comment about Tuesday's event or another one scheduled on Wednesday in Montreal.

Péladeau will join Videotron chief executive Robert Depatie in a meeting billed as a "major announcement concerning the marriage of television and the internet."

Quebecor Media Inc. has been filling its ranks apparently ahead of efforts to start an all-news network.

It tabbed Prime Minister Stephen Harper's former chief spokesman, Kory Teneycke, as vice-president of development.

Teneycke, who left the Prime Minister's Office less than a year ago, has been working on contract with Quebecor for months amid persistent reports of the development of a new, right-wing news channel modelled on the commercially successful Fox News in the United States.

It also hired David Akin, a correspondent for Canwest News Service, and Brian Lilley, former Ottawa bureau chief for Astral Media Radio, Canada's largest private radio broadcaster.

Other on-air faces are expected to be added from CBC and other rival networks.

Quebecor has filed an application for an English-language TV news network with the CRTC, the federal broadcast regulator.

The investments come as the company is preparing to launch its wireless service later this summer.

Quebecor Media Inc. is a subsidiary of Quebecor Inc., which owns cable provider Videotron, French-language TV network TVA and Sun Media, Canada's largest newspaper publisher.