If you've been looking to buy a Panasonic TV but have had a hard time finding one, here's why: The company, which has struggled in the U.S. television business since it exited the plasma TV business back in 2014, has quietly stopped selling sets here as it ponders its future in the industry.

Panasonic sets are still on sale at a few retailers, including Walmart, but most models are listed as unavailable on the Panasonic website. However, if you do find one, you should have no qualms about buying it. Panasonic TVs have typically done well in Consumer Reports' TV tests, and the company says it will continue to provide service and parts for the sets it sells and honor any warranties.

A Panasonic spokesperson said the company could return to the U.S. market in the near future, and it continues to sell TVs in other parts of the world, including Canada, Europe, and Asia.

The company was notably quiet about new TVs during the CES trade show back in January. At that time, the company indicated it would have both a 4K Ultra HD Blu-ray player and a 4K OLED TV this year, but so far neither has made it to the U.S. market.

Until it pulled the plug on its plasma TV business—conceding, like other brands, that it was too difficult to compete with the ever-lower priced LCD-based sets—Panasonic was generally regarded as the industry's premium plasma brand. Its models often topped Consumer Reports' TV Ratings. Since then, Panasonic has become something of a me-too brand in the LCD-based TV market.

Going forward, Panasonic might seek to avoid the more mainstream, commodity-driven TV business and focus instead on higher-end sets. The brand's flagship Ultra HD Premium-certified 4K model, for example, which sells in Canada and Europe, might be a good fit here in the States. Likewise, the company could decide to enter the OLED TV market, currently dominated by one brand—LG.

And Panasonic is not alone in its struggles. Sharp exited the U.S. market last summer, licensing its brand to Hisense. Toshiba pulled the plug several months before that; its brand is now licensed by Compal. Funai controls the Magnavox and Philips brands in the U.S. and RCA-brand TVs are made by On Corporation. Mitsubishi and Pioneer are no longer in the TV business.