I thought the original Ver1.0 1000S was immune from this....
Flaky operation (file format not supported) followed by no operation (can't pause live TV etc).
Replacing HDD with numerous spares (all "in stock" here at home). Says it's formatting - but on inspection after powering off, there is nothing done to the HDD.
Leave it switched off for a while. This causes it to come back to life. For a bit - after which back to square one.
Bin job? I bought it in Jan 13, so it hasn't done too badly...