The Toshiba UL21 supports three HDR formats: HDR10, HLG and Dolby Vision, and you get the same selection of modes as you do when watching SDR content – Natural, Cinema, Game, Sports, Dynamic – plus Dolby Vision Bright and Dolby Vision Dark when watching compatible content.

To access Freeview channels, the TV will need to be tuned into a digital aerial. Connecting the TV to the internet will allow you to access the SMART features and applications on the TV, but not the full channel list. Session token to be used to authenticate requests on behalf of an anonymous user. Session tokens are linked to a client ID (see clientId)

The UK31 is a solid value TV buy, offering a tempting combo of 4K bright room performance and smart functionality. It won’t win any beauty prizes and doesn’t have Disney+ but if you want an all-rounder with an admirable Game performance, it’s difficult to beat for the cash. Chat Widget offers out-of-the-box cookie consent management, see here: Enabling cookie consent for the Chat widget & Web SDK Is upper-budget a thing? If it is, the Toshiba UK31 fits the brief perfectly. This 4K model sits ahead of the massive-selling UL20, with fuss-free smarts and a performance that doesn’t let down the side. The UL21 is Toshiba’s entry-level 4K HDR TV, sitting below the UK31 and the UA2B, which is the company’s Android TV option. It’s available in four screen sizes: 43in, 50in, 55in and 65in. TRU Flow TRU Flow analyses the image and frames to minimise judder effect and keep up with fast paced action scenes.

To test the Toshiba UL21 we used Portrait Displays Calman colour calibration software. Toshiba UL21 review: Sound quality TRU Micro Dimming TRU Micro Dimming improves contrast, focussing on all the different regions of the image.There are five different picture modes available when viewing SDR content – Natural, Cinema, Game, Sports and Dynamic – and you can tweak the contrast, brightness, sharpness and colour of each in the settings menu. You’re also able to toggle on and off various picture enhancement technologies including Toshiba’s TRU Blue, and adjust colour temperature. Some Toshiba TVs support Bluetooth technology – please refer to the specification section of the model you are interested in. TRU Resolution TRU Resolution upscales a wide variety of non 4K content, delivering a more refined image that feels fully immersive." Apps From the latest movies and trending music to your favourite boxsets, we've got it all. The top streaming apps including Netflix, YouTube, Prime Video and Freeview Play built in as standard up to date and ready to go. Used to throttle request rate. If Google Analytics is deployed via Google Tag Manager, this cookie will be named _dc_gtm_.

Colour accuracy is not as impressive when viewing HDR either, particularly when colours become more saturated. Blues are reproduced rather well but intense greens, reds and cyan have a tendency to look unnatural. Whites also suffer from clipping in bright scenes. While viewing a popular test image of mountains and moving clouds, the clouds looked undefined and it was a similar story in darker scenes, with the UL21 unable to articulate fine details with clarity.Wireless Display will allow you to stream content directly to your Toshiba TV. (note: iOS devices not supported – you will need an additional external device to stream content).