Tp 21 will not change. It has the EPG, Sat identifier and other update channels on it, which are for all receivers.It is just bad to now see 2 TPs in QPSK (21 & 32). This is 14 HD channels of lost capacity. Hopefully they turn them back to 8PSK.
Tp 32 reminds me of Tp 27 at 61.5. It has various types of channel while in QPSK,