New Borderlands 1 remaster has 4 player split-screen co-op | TweakTown
Borderlands on Twitter: "Play 4 player couch co-op with your buddies in #BorderlandsHC on the PS4 and Xbox One. Tag your co-op buddies. http://t.co/MBYikV4q4T" / Twitter
Co-Optimus - FAQ - Borderlands: The Pre-Sequel Co-Op FAQ
Co-Optimus - Review - Borderlands 2 Co-Op Review
Video: Borderlands 2 brings splitscreen co-op to Xbox One, PS4 | Eurogamer.net