What sort of reception are people getting on the TV's in their RRS's

I've noticed the reception to be particularly poor recently (weather related maybe?), with hardly any channels available, be it Digital or Analogue (and yes I know the latter is stopping )
Does anyone know if there is a way to 'boost' the signal reception?

I'm just glad it came as part of the standard spec with MY12 as I would be a little peeved if I'd paid for it as an option.  ON THE WAY: BMW F21 M140i
MERCEDES GL350 - Metallic Navy Blue w/Grey interior

GOING: BMW F31 335D MSport+ xDrive Touring
GONE: Land Rover Discovery 4 HSE - Stornaway Grey w/Black Interior (wish we'd kept it )
GONE: BMW F10 520D MSport - Carbon Black
GONE:MY12 RRS SDV6 HSE Sumatra/Ivory/Grand Black Privacy glass

Mine seems to be ok... and I have the older model... tbh I don't really use it unless MOTD is on and then I will tune in .

Most places TV reception is great, some places it is non existent

Thanks guys, that's the thing, sometimes, its great , sometimes rubbish .
I'll see if it improves and if not pop into the dealers next time I'm passing.  ON THE WAY: BMW F21 M140i
MERCEDES GL350 - Metallic Navy Blue w/Grey interior

GOING: BMW F31 335D MSport+ xDrive Touring
GONE: Land Rover Discovery 4 HSE - Stornaway Grey w/Black Interior (wish we'd kept it )
GONE: BMW F10 520D MSport - Carbon Black
GONE:MY12 RRS SDV6 HSE Sumatra/Ivory/Grand Black Privacy glass

ive not travelled far in mine yet, buts its been rubbish in Bolton Wigan and Manchester, Blackrod is a susprise, as i have a clear line of sight of the mast on winter hill from Blackrod  07,TDV8,Black, Black Heated leather all round, Rear Entertainment with Headpones & Remote, TV, DVD, Pure Dab Digital Radio, Sidesteps, Adaptive Headlights, sunroof, now working fuel burning heater )))