As part of the celebration of TSN's 35th anniversary, this is the extended intro to its broadcasts of the Blue Jays presented by Labatt which I think it lasted until 1985.
Introduction to TSN - The Sports Network (Sept. 1, 1984)
The first 7 minutes of the introduction.
The 30th anniversary of TSN's launch is coming up very soon. This recording (that aired on sister channel ESPN Classic Canada) was done when the network was observing its 25th anniversary in 2009.