The company says the subscription service, code-named "Project Latte," will feature premium programming, including "The Sopranos," "The Wire" and "Sex and the City."
"The Wire" streaming will mark the first time the series is presented in HD.
Other HBO programs in the service include "Six Feet Under," "Band of Brothers," "Curb Your Enthusiasm," "Big Love," "Entourage" and "In Treatment."
The service will also offer the complete HBO Films catalogue, the HBO Documentaries library and HBO standup comedy specials.
Bell Media (TSX:BCE) says "Project Latte" will be launched soon and offer more than 10,000 hours of TV content, from HBO and "many world-class content partners."
The service will be made available to all TV subscribers in Canada, pending agreements with participating TV providers, through their set-top box.
It will also be available via apps, online and other platforms.
"With content from all key Hollywood major and independent studios, 'Project Latte' does not duplicate existing services, but instead features additive and exclusive programming," said a statement issued Thursday.