teletext

"Bill" wrote in message
...
How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me
what
channel I've recorded and when. I would have thought VHS would have
stopped
teletext dead.

Puzzled

Rotherham



A good VHS deck will give you a bit (teletext is in the flyback lines). An
S-VHS machine will record most of the page.

Bill wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me what
channel I've recorded and when. I would have thought VHS would have stopped
teletext dead.

Puzzled

Rotherham


A good VCR (especially SVHS) will have enough bandwidth to record the
text data, albeit with some errors. ISTR that the header line of each
text page (which includes the date and time) has error correction, which
means it has a better chance of playing back successfully. For ordinary
teletext characters (other than in the header line) a single bit error
is detected and results in a blank being displayed, and multiple errors
translate to garbage.
Alan

Bill wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me what
channel I've recorded and when. I would have thought VHS would have stopped
teletext dead.

Puzzled

Rotherham


A good VCR (especially SVHS) will have enough bandwidth to record the
text data, albeit with some errors. ISTR that the header line of each
text page (which includes the date and time) has error correction, which
means it has a better chance of playing back successfully. For ordinary
teletext characters (other than in the header line) a single bit error
is detected and results in a blank being displayed, and multiple errors
translate to garbage.
Alan

"Bill" wrote in message
...
How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me
what
channel I've recorded and when. I would have thought VHS would have
stopped
teletext dead.


I've had almost complete but heavily corrupted page 100's come up if I bring
up teletext then cancel the page and leave it looking for it whilst I'm
viewing a VHS recording, though it doesn't work reliably enough. Quality of
recording, of tape, etc etc evidently plays a part. Possibly the resolution
of VHS isn't quite up to the resolution of those dots that carry teletext
that you can see along the top of the picture if you fiddle with the knobs
inside your set.

Ian

"Bill" wrote in message
...
How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me
what
channel I've recorded and when. I would have thought VHS would have
stopped
teletext dead.


I've had almost complete but heavily corrupted page 100's come up if I bring
up teletext then cancel the page and leave it looking for it whilst I'm
viewing a VHS recording, though it doesn't work reliably enough. Quality of
recording, of tape, etc etc evidently plays a part. Possibly the resolution
of VHS isn't quite up to the resolution of those dots that carry teletext
that you can see along the top of the picture if you fiddle with the knobs
inside your set.

Ian

On 17 Nov 2003 19:42:15 GMT, (Bill) wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me what
channel I've recorded and when. I would have thought VHS would have stopped
teletext dead.


I have an S-VHS recorder that seems to record an almost faultless teletext page.
Even subtitles will work most of the time.

JPG


Puzzled

Rotherham

On 17 Nov 2003 19:42:15 GMT, (Bill) wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me what
channel I've recorded and when. I would have thought VHS would have stopped
teletext dead.


I have an S-VHS recorder that seems to record an almost faultless teletext page.
Even subtitles will work most of the time.

JPG


Puzzled

Rotherham

"JPG" wrote in message
...
On 17 Nov 2003 19:42:15 GMT, (Bill) wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me
what
channel I've recorded and when. I would have thought VHS would have
stopped
teletext dead.


I have an S-VHS recorder that seems to record an almost faultless teletext
page.
Even subtitles will work most of the time.

Well what make / model was that then - I think I might buy one!


JPG


Puzzled

Rotherham

"JPG" wrote in message
...
On 17 Nov 2003 19:42:15 GMT, (Bill) wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me
what
channel I've recorded and when. I would have thought VHS would have
stopped
teletext dead.


I have an S-VHS recorder that seems to record an almost faultless teletext
page.
Even subtitles will work most of the time.

Well what make / model was that then - I think I might buy one!


JPG


Puzzled

Rotherham

On Wed, 19 Nov 2003 00:37:52 +0000 (UTC), "R. Mark Clayton"
wrote:


"JPG" wrote in message
.. .
On 17 Nov 2003 19:42:15 GMT, (Bill) wrote:

How come I can get the date and time from teletext when I play back a
videotape? Obviously it's a bit garbled but it's good enough to remind me
what
channel I've recorded and when. I would have thought VHS would have
stopped
teletext dead.


I have an S-VHS recorder that seems to record an almost faultless teletext
page.
Even subtitles will work most of the time.

Well what make / model was that then - I think I might buy one!

I'm at work ATM but I'll let you know this evening. I think it was a Panasonic
- cost £129 from Dixons XL at the Bullring in Birmingham.

JPG



JPG


Puzzled

Rotherham