Q. Is it possible to change the descriptions of the ports on my smart television? I'd prefer to see, for example, "DVD player" or "Sky+ box" rather than the default "HDMI 1".

A. The television is presumably a newish one, so it should be but the manufacturers don't make it easy. With a Samsung television, for instance, go to Settings, then Input, then Source List, then Edit Names. Or you could tackle it from the other direction, and make the attached device send its name to the television, but both the device and the television must support HDMI-CEC to do this. The norm seems to be to have this disabled, so you may need to enable it via the settings menu. To complicate things, manufacturers frequently call HDMI-CEC by their own name. Philips call it EasyLink, Sony call it Bravia Sync, and Samsung call it Anynet!

Q. Is it possible to use Bluetooth to connect my hi-fi to my Sony soundbar to play music?

A. Probably! Most recent soundbars/sound plinths come with Bluetooth receivers, and are rather good music speakers. You will need to buy a Bluetooth transmitter and plug it into the hi-fi headphone socket. Bluetooth transmitters start at around £40; the Aventree Saturn is a good one.

Q. Sky have given me a wireless connector to allow my Sky+ HD box to connect to my wireless router, however it doesn't work. Sky blame the BT Home Hub 3 router, BT says that it should work. Which is right?

A. Checking the specifications for both boxes, BT are right: the router and the Sky box should work together. Your problem may be as simple as the signal from the router not reaching the Sky box, or being too weak where the it is. Try connecting a mobile telephone, laptop or tablet to your wireless network and then go and stand next to the Sky box. If there is no signal, or a very weak one - say, one bar - then you need to move the two boxes closer together. If the signal looks strong enough, use WPS to try to make the two devices connect. (WPS is an industry standard.) Press the Wireless WPS button on the BT Home Hub, then within two minutes press the WPS button on the Sky connector. The two devices should negotiate a connection, though this may take several minutes. If that doesn't solve things, with the connector connected to the Sky box, use the Sky remote controller to access the settings page - look for a spanner at the top of the screen - and then select the Network screen. This should show you a list of nearby wireless networks. Select yours and enter the password using the remote.

Q. I have a surround-sound system connected to my television, and the system has a USB socket. I'd like to show some photographs from my Canon camera on the TV, but when I plug the camera into the USB socket I see a message saying "USB failed". What is the problem?

A. The surround-sound system is an audio device, not a picture viewer, so the most likely cause is that it doesn't support USB-connected cameras! However, if you are certain that the system can handle images, then check that the ones stored on your camera are in a format that it can read. JPEG/JPG is the closest format to a universal one, and most cameras use this format by default. High-end cameras, such as those favoured by professional photographers, tend to store RAW images - a high quality uncompressed format - most unlikely to be recognised by a sound system. Look in the back of the sound system's manual, or the maker's website, to see what formats it can work with, and then adjust your camera's settings to save in one of them.