There are always exceptions, but the cycle seems to typically be beginning of the week.
it's the same thing. watchOS, tvOS...it's all branches of iOS which is still the underlying core. tvOS is just the marketing name so that there is more of a distinction of it's purpose.
Nevertheless, 9.1 is required for any interactions between other devices (e.g iPhone) and the Apple TV like setup for example so it'll have to be out in time.
do you think its more likely to be out tomorrow or thursday?