Just spotted this instore tonight (may be new today). Thanks to jamjar for the full listing given below - better selection than my store had and some very drinkable plonk in there to suit most tastes I think - you might want to get in there while the full selection is still available.
Not quite as good as the recent deal I tried to post with yummy ("£9.99" claimed) NZ Marlborough Sauv Blanc for £2.83/bottle (got incorrectly spammed) but not bad either, especially if you normally shop at Tesco and don't have an Asda nearby.
Thanks also to those who've pointed out the 'double up' deals now running on Clubcard rewards. Means you can effectively halve the price again if you have enough vouchers.
Finally (with thanks to Marlovian), if the 5% off 6 bottles deal is based on a higher original price rather than the £20 offer you may find the price comes in lower still. Let us know on this one.