Probably not legally - unlike Americans who happen to be 'Dish' customers. They will be able to watch it at 10.00pm (EST) via this AMC stream amctv.com/breakingbad4dish/. This is pretty damn genial of AMC Networks considering Dish dropped them over charging issues.
Under an article titled 'Why Dish Dropped AMC' they say: "We know DISH has been urging AMC fans to pay additional monies to see their favorite shows online. It seems unusual to us for a television provider to ask their subscribers to pay extra money to see the same shows that they are already paying for, and that their neighbors are getting, as part of their basic TV subscriptions. The good news is every cable, phone and satellite company other than Dish carries AMC in its basic package and many providers are right now offering special incentives for people to switch and not miss Breaking Bad, Hell on Wheels, The Walking Dead, Mad Men, Portlandia and other favorite programs."
"What's this got to do with me", I hear you mumble. Not much, just wanted to remind you that Breaking Bad Season 5 is premiering this Sunday at 10pm EST, you know, in case you happened to be in America. Or near a really good internet connection. Not that we condone that kind of activity.
Rest easy in the knowledge that TG4 will be sure to air it at some point in the future.