As the X6B uses LED backlighting it's much slimmer than most older 24-inch sets. Towards the top and middle the chassis is only around 29mm deep, but it does extend out to about 60mm at the bottom to make some room for the speakers.
When it comes to the TV's remote control, I've got no complaints. It's long and reasonably slender, but the buttons are generously proportioned. All the keys are well placed too, so all the key features that you use most often are within easy reach of your thumb as it hovers over it. Panasonic has also added dedicated buttons for accessing the homescreen, apps menu and programming guide, which really does help to speed up navigation.
Most of the TV's connections are found on an outward facing panel on the rear. These include two HDMI inputs, a set of component inputs, a Scart socket, an Ethernet socket and an optical audio output. A side panel on the left-hand edge houses the two USB ports as well as the headphone jack and CI cam slot.
It's not a bad lineup of connections, although given the price of the TV it would have been fair to throw in a third HDMI input.
It's rare to hear a smaller screen TV with really good audio and unfortunately the X6B is no different in this regard. It has just two tiny 3W speakers built-in to its thin chassis and they're incapable of producing much in the way of bass. As a result, its audio tends to sound rather thin and a little brittle if you push the volume very hard.
To be fair, it's no worse than other small sets I've had in for review. If you turn on the virtual surround setting in the audio menu it does produce a wider than usual sound stage without muddying dialogue in the way that some of these virtual modes do.
Also, while its speakers are small, they're still reasonably powerful and can certainly fill smaller rooms with pretty loud audio before distortion starts to creep in.
Despite its relatively high price tag (and what you may read on some retailer sites), the X6B is not a Full HD TV. Instead its panel has a resolution of 1,366x768 pixels, which makes it an HD Ready TV. Does it matter much? To be honest it doesn't, as from a normal viewing distance you really can't tell the difference between Full HD 1080p and HD Ready 720p on a screen this size. If you're thinking of using the TV to double up as a monitor for a computer, however, the lower resolution makes it a poor choice.
With normal TV feeds, and especially HD channels, the X6B's images still look extremely sharp though, which perhaps isn't surprising given that its pixels are so tightly packed together. Colour performance is also very good for such a teeny telly, especially if you choose one of the cinema presets, which produce warm and believable hues that look especially good for watching movies in HD.
On the whole black level performance isn't bad. It's far from reference level, but it's deeper than I'd expect to see on this size of screen. There is a bit of backlight pooling visible if you watch the TV a darker room though. Viewing angles are relatively narrow too, so if you watch it off-axis, colours tend to wash out quite a bit.
As with a lot of small screen TVs, its motion performance isn't amazing, so you will see some LCD blur when you're watching sports like tennis or football. Sadly, there are no motion processing tools onboard that you can call on to cover up this weakness.
The TX-L24X6B offers surprisingly good picture performance by small-screen standards and it's great to see Panasonic integrate its smart TV system into the TV, unlike on the older TX-L24E3B. Its asking price is high given the small size, however, and it's a shame it doesn't support more online catch-up TV services.