MANY  THANKS to SONYBUGS for taking the initiative to help others out with the same problem!  My Sony KV 27FS100 had the same problem with the initial setup popping up intermittently.   The problem was inconsistent meaning that it would do it for weeks on end and then quit for months on end.   I have always just stuck a piece of tape over the Channel Minus button which got rid of the pop up as soon as it appeared. 

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The last time it happened I did a Google search and found SONYBUGS solution to the problem.  It did seem logical that the remote control board was at fault because the remote control would not be able to communicate with the tv during the times this problem happened.   

 >>

I took SONYBUGS advice and bought the part  ‘A1401099A’ (Sony HS VAR mounted PC Board) from Partsolver.com for $67 shipped.  [Keep in mind this is for the KV FS 100 model.]  Putting the part in myself took less than an hour.  It was not difficult at all.  If you replaced a hard drive in a computer you could easily do this job.   There is no soldering involved.  The only parts you need are a Phillips head screwdriver and needle nose pliers.    It would help to have another person there to hold the main board while you disconnected the front ‘remote’ board from it but it is not necessary. 

 >>Anyway, hope this info helps someone else out. 

Thank you for contacting Sony Online Support.



We apologize for the difficulties you are experiencing. The Initial Setup screen

will appear every time the television is turned on until an Auto Program is

performed.



If the television has been auto programmed and the Initial Setup screen appears

when turning on the television, this indicates that the television has

experienced a loss of power. Other than a power outage, the television will lose

power if plugged into an external component, such as a cable box, and the

component is turned off. Plug the television into a wall outlet that is not

controlled by a wall switch to eliminate this type of power loss.



It may be necessary to perform a power reset on the television to resolve this

issue. To reset the television, disconnect the power cord for a short period of

time (approximately 1 minute), then reconnect the power cord and power on the

television.    



NOTE: Most SONY televisions can be reset by holding down the reset button on the

remote control while powering off the television. The television will power off

then on again.



NOTE: If the initial setup screen is displaying at random times and the Auto

Program has been completed and the television has not loss power, service will

require service to resolve the issue.. 



We apologize for the difficulties you are experiencing. Unfortunately, based on

the information in your letter we will be unable to resolve your issue through

email. It appears that your product requires service. The location of our Sony

service center, as well as any available local, Sony authorized, service

centers, is available online at:



   l('http://www.sony.com/repair');">http://www.sony.com/repair



Enter the model number, your date of purchase and zip code, then click the

SEARCH button. To obtain our repair cost estimate and submit your request

online, just click the CONTINUE button and enter the requested information. Once

you have finished, you will be sent a confirmation email with further

instructions.



TIP: Our service confirmation email includes a .pdf file attachment

        of your personalized repair form. If you are unable to receive

        or open this attachment please call us at (800) 222-SONY and

        we will fax this form to you. For fastest service be sure to have the

        event (Exxxxxxxx) number from the confirmation email's subject

        line, as well as your fax number when you call.



TIP: Models that have been released in the last 90 days, or that are

        over 7 years old, will not be recognized by the online repair form.

        If your model is not recognized, please call us for assistance at:

        800-222-SONY (7669).



TIP: You may also follow the status of your repair online at:

        l('http://www.sony.com/repair');">http://www.sony.com/repair

        Please note that our repair status website will NOT indicate that

        your unit has been received until it has actually been assigned to

        a service technician and is on the bench for repair. This can take

        7-10 business days for your repair status to indicate the delivery.



NOTICE: Should you choose to have your product serviced at a local,

                 Sony authorized, service center please be advised that these

                 locations are all independently owned and operated. Any costs

                 estimated on our website do not apply at local service centers.



TIP: If you want a more interactive support experience you may

        want to try our LiveAssist Chat support available at:

        l('http://www.iq.sony.com/srvs/conversation/liveassist.asp');">http://www.iq.sony.com/srvs/conversation/liveassist.asp



Thank You,



Your Sony Email Response Team"