I like the TiVo but am not totally unbiased
Nanor has brought up some issues that I agree with
Info on the mini guide
Concurrent recordings - should be smart enough to use a single tuner on this and split the output to two programmes.
Others that I'd like to see would include (some of these are not in VM control)
Dynamic EPG so recordings work
Better programme descriptions - often truncated
Better switching of tuners so if I flick between channels (records apart) I can switch back and rewind.
All channels viewable in the mini picture.
Specify version of programme wanted (SD/HD/AD)
Record series across channels so you get the episode whatever the channel but only one copy and if wanting New Only not just new to that channel.
Multi tuner view - press button and get 3 mini pictures from each tuner, remaining space with programme details for each, then can move cursor and select from these.
Better grouping - if suggestions get multiple programmes automatically group them.
Group deletes - sometimes I delete a programme from group and TiVo removes group even though there are other episodes present maybe some are series link some suggestions. Keep group if episodes whatever the source.