Poor analog TV quality

[Ailtone]

Hi all,

This is my first post here! I'm trying to get a better analog TV quality, but Sage doesn't give me option to get 640x480 or 720x576 resolution, only 320x240. The result is a very blurred image. Other TV programs (like iuVCR and DScaler) give me those resolutions...
Here is a fragment of my log file:

Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type MEDIASUBTYPE_RGB555 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type MEDIASUBTYPE_RGB24 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type MEDIASUBTYPE_YVU9 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type Unknown GUID Name F type FORMAT_VideoInfo
Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type MEDIASUBTYPE_YUY2 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type MEDIASUBTYPE_RGB555 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.305 M type MEDIATYPE_Video  S type MEDIASUBTYPE_RGB24 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.306 M type MEDIATYPE_Video  S type MEDIASUBTYPE_YVU9 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.306 M type MEDIATYPE_Video  S type Unknown GUID Name F type FORMAT_VideoInfo
Dom 9/28 17:47:40.306 NATIVE RenderVideo step 3
Dom 9/28 17:47:40.342 VMR9 alloc 320x240 Offscreen DefaultPool  format=YUY2 minBuffs=1 arx=320 ary=240 nativeWidth=320 nativeHeight=240 reqNumBuff=1 allocNumBuff=1 hr=0x0
Dom 9/28 17:47:40.342 Setting up VMR9 deinterlacing
Dom 9/28 17:47:40.342 Actual deinterlace: hr=0x0 guid={00000000-0000-0000-0000-000000000000}
Dom 9/28 17:47:40.342 deinterlace mode: hr=0x1 guid={00000000-0000-0000-0000-000000000000}
Dom 9/28 17:47:40.342 Setting deinterlace mode to actual mode...
Dom 9/28 17:47:40.342 deinterlace mode: hr=0x1 guid={00000000-0000-0000-0000-000000000000}
Dom 9/28 17:47:40.342 Filter Graph Video Renderer Info:
Dom 9/28 17:47:40.343 Video Renderer:CLSID_VideoMixingRenderer9
Dom 9/28 17:47:40.343 M type MEDIATYPE_Video  S type MEDIASUBTYPE_YUY2 F type FORMAT_VideoInfo
Dom 9/28 17:47:40.345 NATIVE RenderAudio called stream=1
Dom 9/28 17:47:40.347 AUDIO not rendered. No source pin found!
Dom 9/28 17:47:40.347 DShowGraphFilters=0001,AudRend,VidRend,VideoCapture,
Dom 9/28 17:47:40.358 Running the playback graph.

My capture card is a analog Conexant 2388x
I know Sage has a limited support for software decoding cards, but
any help is welcome!