What the report showed was that the Labour Party got just one star and the Tories zero. I'll repeat that for the hard of reading, the Tory got nothing, zilch, a big fat nought.
So let's get this right, the BBC are equating the Lib Dems three stars, and if you read the repot, they are issued on a trafffic light system of red, amber and green, which gets you a star, with the zero stars that the Tories got. Indeed, in only one are did the Lib Dems even receive a red light, with three green lights indicating the three stars) and two amber.
If somebody with an ounce of fairness was righting the BBC headline they would have acknowledged that the Lib Dems three out of six is eqaul to a half and is also 50% more than the Tories 0%.