£80 for drivers? Drivers are always available for free. Are you asking a technician to install them for you?
As you mention £, I assume you are in the UK and adjust accordingly.
Go to http://www.dell.com/support/drivers/uk/en/ukdhs1/DriversHome/?c=uk&s=dhs&cs=ukdhs1&l=en
You probably want this one:
AVerMedia-Driver
R141377.EXE
Applies to:
TVT5 M779 Internal PAL-SECAM-DVBt Hybrid TV Tuner
There are 2 others, but they are NTSC cards that should be useless in the UK.
Electro
July 2012
I can answer this question...
Where can I get missing driver for Dell Dimension 9200 TV card?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix desktop pcs.