IIRC, didn’t most older pc monitors have a setup mode where one of the options 
was interlace or non-interlace.


Sent from my iPhone

> On May 20, 2024, at 09:35, Paul Koning via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> I think you have that backwards.
> 
> TVs use interlace.  Older PC displays may do so, or not; typically the 480 
> line format was not interlaced but there might be high resolution modes that 
> were.  The reason was to deal with bandwidth limitations.
> 
> Flat panel displays normally support a pile of input formats, though only the 
> "native" format (the actual line count matching the display hardware) is 
> directly handled, all the others involve reformatting to the native format.  
> That reformatting generally results in some loss of display quality, how much 
> depends on how well the relevant hardware is designed.  And interlaced 
> formats are often supported not just for the VGA input (if there is one) but 
> also for DVI/HDMI inputs.  To get the accurate answer you have to check the 
> specification sheet.
> 
>    paul
> 
>> On May 20, 2024, at 12:13 PM, CAREY SCHUG via cctalk <cctalk@classiccmp.org> 
>> wrote:
>> 
>> This may have been covered before, VERY early in this tread.
>> 
>> I think I tried a game on a flatscreen, and had issues.  I don't know if it 
>> applies to the radio shack Color Computer, the interest of the original 
>> poster.
>> 
>> many games and entry pcs with old style tv analog format, don't interlace, 
>> and tube TVs nearly all (except maybe a few late model high end ones?) are 
>> fine with that, but I seem to recall that most or all digital/flat screen  
>> can't deal with non-interlace.
>> 
>> <pre>--Carey</pre>
> 

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