Chart of the day: Apple TV’s market share, revisited by Philip Elmer-DeWitt @FortuneMagazine July 17, 2013, 5:49 PM EST E-mail Tweet Facebook Google Plus Linkedin Share icons FORTUNE — I took a crack at a pie chart like this a couple months ago with limited success, so I was pleased to see how the professional market researchers at Frost & Sullivan do it. Like me, they left off Microsoft’s Xbox, which has some of the same media functions but is primarily a game machine. Unlike me, they remembered to include TiVo TIVO and an assortment of products from Boxee, Logitech LOGI , Liberty LMCA , Western Digital WDCA , Netgear NTGR , RCA GE , Sony SNE , Vizio and others. They didn’t offer any sales estimates. I did. In any event, here’s what they had to say about Apple’s AAPL offering and its 56% share of the market: “Apple accounts for the majority of sales by far, despite offering relatively narrow content access – this is not (yet) a market being driven by the value proposition of a streaming TV experience. AppleTV’s AirPlay feature was strategically crafted to simplify the process of transferring laptop and tablet displays to a TV screen, and it is AirPlaying – not OTT streaming – that is the primary reason for purchase of AppleTV devices. Roku is the second largest vendor in this space and is driving growth through a strong lineup of content as well as through a series of agreements with Pay TV vendors such as Time Warner Cable. The long-term potential for this segment does remain uncertain. It is important to note that while current growth rates are high, the total installed base of $99 streaming boxes is quite low.” Google GOOG , they add, “is conspicuous by its absence in this segment.” Link: The Frost & Sullivan blog report.