All non-DVR receivers will only have a 3-day guide and none of the extras such as original air date etc. ... DVRs have a 9-day guide and all the other extras that make using a DVR much easier.
It has even been witnessed on the 211's that they only have a 3-day guide until an external hard drive is connected and they activate DVR service. Then they get the 9-day, but if the EHD is disconnected again it's back to 3.
I think the reason behind this is a mix between the 9-day guide requiring the $6 DVR fee per month (except on 211, one-time $40 activation) and the receivers simply not having enough internal memory without a hard drive.