The result was largely regulatory theatre. The purchaser would typically unveil a benefits package featuring self-interested proposals, often amend those plans at the CRTC hearing to demonstrate it was sensitive to criticisms from various groups, and the CRTC would proceed to further tweak the package to show it was not ready to rubber stamp the transaction.
My extra Toronto Star column (Toronto Star version, homepage version) notes the process generally served the companies and the tangible benefits recipients well. The merging companies were reasonably assured of getting their deal approved and the tangible benefits recipients received hundreds of millions in funding with few strings attached. 

The problem was that the public was missing from this process. Tough policy issues with a direct impact on the public were put off for another day as the public interest was supposedly served by trickle down benefits generated by market efficiencies or the creation of new Canadian programming.