[Milhouse]

Actually during further investigation with movements using a remote around tvheadend settings options I noticed that actually I could move to main left settings with problem specifically that when first entering tvheadend settings option, user is placed within "tvheadend hostname and ip address" option with issue being unable to move to left options whilst within this setting. (cannot move to left whilst on HTTP & HTSP option either, moving thorugh value field rather than too far left "Connection, Streaming, Timer and Advanced" options)

That sounds odd. I'm assuming the first field is a text field (for hostname or IP address), so you should be able to move to the left column by moving the cursor to the beginning of the text field, and then pressing left once more to move across to the left column - this is how it works in, say, Settings > Services > Control > Web server which has similar text/numeric fields.