50% off sat-nav's advert

[JLWarlow]

I'm pretty sure I saw an advert on TV advertising 50% off sat-nav's,
the thing is I can't remember which retailer it was for and when it was
on? I have a vague recollection this offer ended on Sunday, or was only
available on Sunday? Please help, it's doing my nut! Thanks.

[JLWarlow]

Just seen the advert again; Halfords, up to 50% off all sat nav's.
Offer ending soon.