Have read the guides, so perhaps I'm missing something obvious.
Is there a way to make a file the default for all downloads.
Have tried -- output "/../..., but it still downloads to the working directory

is the only command line option to change the output directory. Post the output from your full command with added. Scrub your username if necessary.

You can also set the IPLAYER_OUTDIR environment variable, but lets debug the command line first.

geoff@Kodi:~$ get_iplayer --output "home/geoff/Videos" --show-options
get_iplayer 2.94-ppa23, Copyright (C) 2008-2010 Phil Lewis
This program comes with ABSOLUTELY NO WARRANTY; for details use --warranty.
This is free software, and you are welcome to redistribute it under certain
conditions; use --conditions for details.

Options from Files:
atomicparsley = /usr/bin/AtomicParsley
flvstreamer = /usr/bin/rtmpdump
modes = good
packagemanager = apt
rtmpdump = /usr/bin/rtmpdump
rtmptvopts = --swfVfy=http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf
tag_hdvideo = 1
tag_longdesc = 1
tag_utf8 = 1

Options from Command Line:
output = home/geoff/Videos
showoptions = 1

Options Used:
atomicparsley = /usr/bin/AtomicParsley
encodingconsolein = UTF-8
encodingconsoleout = UTF-8
encodinglocale = UTF-8
encodinglocalefs = UTF-8
flvstreamer = /usr/bin/rtmpdump
modes = good
output = home/geoff/Videos
packagemanager = apt
rtmpdump = /usr/bin/rtmpdump
rtmptvopts = --swfVfy=http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf
showoptions = 1
tag_hdvideo = 1
tag_longdesc = 1
tag_utf8 = 1

Search Args: .*

geoff@Kodi:~$

I presume your output path should have a leading slash. Otherwise it will create a new path under the working directory.

Also, remove that rtmptvopts setting. That has been obsolete for a couple of years.

Tried Inserting leading slash but no difference, still downloads to home.
Maybe I'm missing something obvious.What I'm trying to do is specify the download file without having to enter it every time I do a download.So when I'm in thr PVR and download a file it goes to Videos.

Read the documentation in the wiki. You'll find examples of how to save settings permanently. They will then be picked up by both get_iplayer and web pvr, which I assume is the "PVR" to which you referred.

Thanks for that,will give it a go.

All sorted, my file destination did not exist, so it defaulted to the working directory.
Your suggestion to look at the Wiki was helpful, so thanks again.