PDA- yes, plenty of Palm devices over the years. Pretty sure I had an IBM WorkPad 30x, a Zire 71, and a Tungsten T3. They were great devices, absolutely fantastic for the time period.
DVD recorder- yes, both for the TV and DVD burner drives in PCs.
Web TV- not me, but we did get a setup for my grandparents back in the day. What an absolutely terrible way to browse the internet.
3D tv- never saw the need personally.
Raspberry pi- oh yes, been playing with them since they came out.
Internet Radio Player- no, never did. By the time this made sense I was fully invested in the iPod world and had hoarded enough music to not make it worthwhile.