[mythtv-users] Rescanned OTA channels and Lost most of them

[John Pilkington]

On 18/03/2020 22:07, R Kannan wrote:
> 
>> Date: Tue, 17 Mar 2020 17:40:29 -0700
>> From: Allen Edwards<allen.p.edwards at gmail.com>
>> To: Discussion about MythTV<mythtv-users at mythtv.org>
>> Subject: Re: [mythtv-users] Rescanned OTA channels and Lost most of
>> 	them
>> Message-ID:
>> 	<CAH8UtKN=a0vnvGfKaiD_b2MCwdSoTVyN39KFhzHd+UdCNyAO0g at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> On Tue, Mar 17, 2020 at 3:42 PM R Kannan<rk111810 at gmail.com>  wrote:
>>
>>> All,
>>>
>>> There was an announcement on some OTA channels in my area (Detroit, MI)
>>> that the frequencies are changing and asked everyone to rescan.
>>>
>>> So I rescanned on my MythTV box and did 'Update All' old channels and
>>> 'Insert All' new channels. Now most of the channels are gone and
>>> mythfilldatabase is not able to get the program data from Schedules
>>> Direct. What now? Did I miss something?
>>>
>>> Thanks for any help.
>>>
>>>
>>> _______________________________________________
>>>
>> I successfully rescanned selected channels:
>> 1) Delete the old channels using mythweb
>> 2) Scan the desired channels
>> 3) Edit using mythweb to keep the ones you want.
>>
>> Not knowing what you did but my guess you need to delete all the old
>> channels first.
>>
>> Allen
> Thanks for the help. I deleted all channels and rescanned again. I lost 
> one multiplex of 3 channels but other channels came through. 
> Interestingly this was one of the channels where the frequecies were not 
> changed and was retained the last time I did the scanning. Perhaps the 
> signal was weak and it did not pick up while scanning.
> 
> All my scheduled recordings are in order and it seems to record 
> correctly. But when I go to 'Watch Live TV' , it flashes for a second 
> but does not show live TV. I wonder if it is trying to tine to the last 
> channel that I watched which was deleted.
> 
If you go to the Program Guide, select the channel and press Menu, you 
should get an option to Watch This Channel - which will also update it 
for the next time.