Briefly: 4K Blu-ray Player, Avengers Ranked, Colgate Fined

Brief news items of note for Lifehacker readers, including: Panasonic introduces Ultra HD Blu-ray player, Colgate cops $18m fine, all 72 Avengers ranked.

• 4K TVs have been around for a few years now, but there hasn't been any physical media to take advantage of them. That all changes this year, with Ultra HD discs finally launching in mid-May. Today, Panasonic unveiled its first 4K Ultra HD Blu-ray Player. Head to Gizmodo for more details.
• Marvel's Avengers has contained a hell of a lot of superheroes over the years; 72 to be exact. Here they all are, ranked from best to worst.
• Colgate just copped an $18m fine over a detergent cartel — and Woolworths is facing a similar case. Business Insider has the story.
• Jetstar is having a 'Dive into Hawaii' sale with return flights going for under $500. Click here for more information.