NHL has opened their yearly subscriptions to NHL.TV Gamecenter for $139.96; if you can verify a Military or Student ID through TroopID or StudentID, there's a 35% discount making the final total $90.97. For me, the Discover Card 10% off did not apply together with the 35% discount (not stackable).
If you want a single team subscription, it would be about $111.96-39.18=$72.78.
If you choose monthly at $24.99/month, the discount only applies to the first month.
Of course, specific & local game blackouts apply.
Edit: Thanks to honorarytitle for suggesting using a VPN to connect outside of US to get international pricing (Europe only??) at $119.99-35%=$77.99; once connected via VPN, go here: