PCM Audio Question (with chart)

[Rumar 4U]

Source Audio Format PS3 HDMI PS3 Toslink Bitstream Bandwidth
PS3 Dolby TrueHD Linear PCM Bitstream No Sound over 3.0 Mbps
DTS-HD(etc…) Linear PCM Bitstream No Sound over 3.0 Mbps
Uncompressed Linear PCM Bitstream Incomplete over 3.0 Mbps
DTS Linear PCM DTS Good Sound 1.5 Mbps
Dolby Digital Linear PCM Dolby Dig Good Sound 640 Kbps

Did not include 7.1 Resolution or Downmix
1 Is this Chart Correct ? its just to understand how it works before buying a Receiver
2 Do the Uncompressed formats puts (encondes) all their 5.1 signals into PCM Lt & Rt (downmix) to a receiver decoder and get separated ?
3 Can the PS3 Encode (if it’s the correct term) all the Uncompressed formats without loss into PCM Lt & Rt (downmix) (cheaper older receivers) ?
4 Does a HDMI input receiver does Linear PCM in Lt & Rt or 5.1 uncompressed signals (Lt, Rt, Ct, Sw, Ls t, Rs t) ?
5 Does the Dolby Prologic IIx puts the Lt & Rt (if its not downmixed) well into 5.1 ?
6 Is there any (not pricey) decoder that can do 5.1 over Linear PCM in separated signals ?
7 The PS3 has 192khz Linear PCM 5.1 signals but the Source its only at 48khz, is it necessary ?
Thanks for your time