TV socket in flat (UK)

Just moved into a new flat and have Freeview setup from the aerial socket, seems to work ok except for 2 MUXs, the analogue signal isn't great but you can watch all 5 channels. The socket has 4 connectors, 1 TV (aerial) 1 FM and 2 SAT.

The management company have informed me that there's only a dish on the roof and that if i have a problem i have to call out a Sky engineer, if the engineer says it's a communal problem then the management company will do something about it otherwise it's my problem! (Yes they really are that stupid).

What i would like to do is put in a new socket to see if that's the problem, i've noticed that the screw on the TV socket doesn't seem to be 'biting' on the cable and even with it screwed down i can pull the cable out.

^TV lead on the left.

So, after that rather long explanation, where do i go to get a replacement?

It sounds like (regardless of what the management company calims) you have an "integrated reception system". In such a system a multiswitch is used to provide combined TV, sattelite and FM on all cables. On your plate one of the cables goes to a triplexer and the other goes direct to the SAT2 socket. These plates are sometimes reffered to as quadplex (though that is a somewhat misleading term).

http://cpc.farnell.com/global-communications/wptv-fm-sat-sat2/triplex-wall-plate/dp/SE00626

Thanks for the reply, the faceplate in the flat has two blanked out connectors that are for telephone sockets but with no wires there. The faceplate looks about the same size as a double gang UK power socket faceplate.

I can't upload a photo of it at the moment but if that would help i can do that at some point tomorrow.

So would this be suitable:
http://cpc.farnell.com/global-communications/mswp/global-multi-service-wall-plate/dp/SE00284

It looks less than ideal because the socket marked sat2/return appears to be an aerial style socket rather than a F connector.

I'd go for the triax 304110 or 304114 from http://www.satcure.co.uk/accs/page15.htm

When I was living in my flat, every now and again, the picture ghosted, turns out that the landlord was giving the upstairs tennant discount on his rent, as his power supply supplied an amp for the building, but when he ran out of 50p's for the meter, all 5 or so flat's TV signals went down...which often lasted for weeks!

Eventually, I opted for cable reception, so the engineers installed it, and as they were doing their final checks/installation, they checked with their centre, and were told red alert - DO NOT install at that location, due to prior bad credit checks! But they said, job done, outta here.

A few weeks after that, thought I might need to get a TV license..so rang them up, where did you see the advert to get a TV license, I was asked...er on my TV I heard myself say...OOPS! Day after the van turns up to prosecute me, but by that time I had x2 TV licenses!

Hope my rambling pre-empt helps, and you enjoy the latter story.