The problem lies mainly in Astro. Not LCD TV. Astro PQ is poor and it is in 4:3 ratio. Once you try to fit a SD pic (576p PAL) from Astro into HD panel of Samsung, its internal scaler will try to fit the signal into its native rez panel. Hence, it will be 'enlarge' (in this case 'overblown'), making the picture looks coarse.

Using S-Video will help a little. But, I do hope Astro will upgrade its broadcasting system, which will not materialise in this 2 years.

All the while I thought it was 576p since it is PAL signal. Didnt know it is only 480i. Now, that really explain the poor PQ. My bad.