Yoga by Shilpa is very good.
The explanation of the postures and the procedure to do them is done well too.
It is in English.
Since it is a VCD, the quality is not that great.
May be that is because we are now used to watching everything in HD, Blue-ray etc.
However, that is not an obstacle for following the Yoga, though.
I would suggest buying the DVD version of this (hoping it would be better), instead.
One drawback I didn't expect is that we cannot save the video to our PC.
We will have to play it always from the CD. Implies, I cannot put the video on my Mobile or Tab which I was intending to do.
The CD is not that good. There a total 11 parts of the video, of which at least 3 are not playing.
However, the Yoga by Shilpa is only in one part and it doesn't have a problem. The rest of the parts are some promotional videos.
There's even one about Bipasha's exercising DVD.

Overall it's a good help to start with Yoga at home.
But I would suggest going for a DVD or other version for a better quality video.
Don't plan to save the video to your mobile devices as it cannot happen.