Dear Philips,

I'd like to know, why the multifeed option was disabled for Sky channels on the 4606 TV models beginning of firmware 2.16 (TPM71E)?

Multifeed option is disabled in Sky channels. (Only applicable to country, Germany)
Can you please state the reason?

The other 2011 TV series (Q555x) do have this option. Also if you change the country setting to a country different from Germany, this option is also not available.