Optimum Display Resolution (to CRT Television over S-Video)

Country: Uk
VIDEO CARD: INNO3d NVIDIA GEFORCE 7300GS GRAPHICS CARD (256Mb)
CPU: PENTIUM D915 2.8Ghz (dual core)
RAM: 2Gb DDR2 6400
MOTHERBOARD: ASUS P5W DH DELUXE DIGITAL HOME ATX
PRIMARY DISPLAY: SAMSUNG SYNCMASTER 205BW 20.1" TFT-LCD MONITOR (over
DVI)
SECONDARY DISPLAY: STANDARD CRT TELEVISION (over S-Video)
HARD DRIVE: SAMSUNG SPINPOINT P120S (SP2504C) 250Gb SATA II
DVB-T TV CARD: PINNACLE PCTV DBV-T PRO TV TUNER

I record and playback freeview (Uk) digital television (DVB-T) using
the Pinnacle card.

I playback recorded Tv to a standard CRT television (as the secondary
display) over an S-Video cable from the Inno3d Graphics card.

What is the best display resolution setting for the CRT television for
best picture quality of a DVB-T broadcast? currently the graphics card
for this display is configured for "I/PAL" and the resolution is set
1024x768 (the other options are 960/600 or 800x600)?

Incidentally, the resolution for the Samsung TFT display (which I use
as the primary display, not for watching recorded Tv) is set for the
native resolution of 1680x1050.

Thanks
Mark