It came down to the final night of the regular season, but the eight Eastern Conference playoff spots have been clinched and the first-round matchups are set.

Related: 2015 Stanley Cup playoffs - Western Conference matchups set

Here's how the four series break down:

Canadiens vs. Senators

Date Time (EST) Location Networks Wednesday April 15 7 p.m. Montreal CBC; TVA Sports; NHL Network Friday April 17 7 p.m. Montreal CBC; TVA Sports; CNBC Sunday April 19 7 p.m. Ottawa CBC; TVA Sports; NBCSN Wednesday April 22 7 p.m. Ottawa CBC; TVA Sports; USA *Friday April 24 TBD Montreal CBC *Sunday April 26 TBD Ottawa CBC *Tuesday April 28 TBD Montreal CBC

Lightning vs. Red Wings

Date Time (EST) Location Networks Thursday April 16 7:30 p.m. Tampa Bay CNBC; Sportsnet; TVA Sports Saturday April 18 3 p.m. Tampa Bay NBC; CBC; TVA Sports Tuesday April 21 7 p.m. Detroit NBCSN; Sportsnet; TVA Sports Thursday April 23 7 p.m. Detroit NBCSN; CBC; TVA Sports *Saturday April 25 TBD Tampa Bay TBD *Monday April 27 TBD Detroit TBD *Wednesday April 29 TBD Tampa Bay TBD

Rangers vs. Penguins

Date Time (EST) Location Networks Thursday April 16 7 p.m. New York NBCSN; CBC; TVA Sports Saturday April 18 8 p.m. New York NBC; CBC; TVA Sports Monday April 20 7 p.m. Pittsburgh NBCSN; CBC; TVA Sports Wednesday April 22 7 p.m. Pittsburgh NBCSN; SN 360; TVA Sports *Friday April 24 TBD New York TBD *Sunday April 26 TBD Pittsburgh TBD *Tuesday April 28 TBD New York TBD

Capitals vs. Islanders