Tamil One was originally owned by Network Television International, who were awarded a license by the Canadian Radio-television and Telecommunications Commission (CRTC) to launch a specialty channel called NTI Tamil Service, described as "a national ethnic Category 2 pay television service targeting the Tamil/Tamil-speaking community.

"[1] The channel subsequently launched on September 6, 2001, on Rogers Cable as TamilTV.

On February 9, 2001, Peethambaran Koneswaran sold Network Television International to Medianet Canada Ltd. which was operated by Phillip Koneswaran, who subsequently converted NTI into a subsidiary of Medianet Canada.

On February 1, 2008, Medianet Canada sold the channel to Tamil One Inc. (controlled by Subanasiri Vaithilingam).

[4] In June 2016, Tamil One switched to High Definition service on both Rogers and Bell channels respectively.