Bassett Media Group Corp., a Toronto-based advertising display holding company, has signed a letter of intent to acquire some assets of Sidetrack Technologies Inc. in a share swap deal worth about $3 million, less assumed liabilities.

Sidetrack owns and operates full-motion advertising display systems in subway and rail tunnels, in San Francisco, Los Angeles, London, Mexico City, Monterrey and Rio de Janeiro (see video below).

The acquisition is expected to close before the end of September.

Bassett Media’s two primary business units are digital signage advertising companies Impulse Media and Concourse Media.