Editing Simultaneous substitution (section)

===Specific television providers===
In terms of television providers, the practice of simsubbing is implemented in different ways, depending on the company, especially in the case of satellite providers, which operate on a national basis and not regionally as cable providers do;
* [[Shaw Direct]] invokes simsubs according to a subscriber's [[Canadian postal code|postal code]], and is implemented by the receiver's firmware; this method enforces simsubs only in areas where they are legally needed. Beginning in February 2012, however, Shaw Direct began implementing simsubs for the [[Global Television Network#Global HD|Global]] network's HD feed ([[television channel|channel]] 256) for all of their high-definition subscribers, which affects ABC East HD ([[WXYZ-TV]]), CBS East HD ([[WWJ-TV]]), Fox East HD ([[WUHF]]) and NBC East HD ([[WDIV-TV]]). It is speculated that this is due to the 2010 purchase of the Global Television Network by [[Shaw Communications]]. At first, no other channels were simsubbed; Shaw Direct later began implementing simsubs for [[Citytv]], but it still does not do so for [[CTV Television Network|CTV]], its main competitor.
* [[Bell Satellite TV]] invokes simsubs to all subscribers nationwide, implemented by its uplink centre (which also provides services for other service providers); by doing so, simsubs for a particular channel are implemented nationwide, regardless of where the subscriber lives or which feed the subscriber watches. Notably, Bell's feeds also invoked simsubs on network programming being simulcast by specialty channels owned by [[Bell Media]], such as [[The Sports Network|TSN]]. This has since ceased due to CRTC rules that explicitly forbid this practice.
* Similarly, [[Rogers Cable]] invoked simsubs on U.S. network affiliates for sports programming simulcast on its [[Sportsnet]] specialty channels (such as the [[2013 World Series]] on Fox in lieu of the [[MLB International]] feed). Sportsnet has since reverted to using the MLB International feed, tying into the current involvement of Sportsnet personality [[Buck Martinez]] (who serves as play-by-play commentator for Sportsnet's regular-season broadcasts of the [[Toronto Blue Jays]]).