I have strange problem.
If i use Windows 7, then grabbing from telkku.com works with WG+ ver. 1.56.22 and 1.57. When i use Ubuntu and Mono 4.8.0 , then with ver. 1.56.22 grabbing from telkku.com fine, but with ver.1.57 gives errors, with others sites is ok.
In summary - telkku.com.ini do not works with Mono and WG+ version 1.57.
I ran into the same problem when I tried to use the program on a Raspberry Pi. For some reason the newer versions of WebGrab+Plus don't like stop times.
To fix the problem try removing the line starting with "index_stop" in telkku.com.ini. The downside of removing stop times is that on some channels the last program of the day will now wrongly be over 10 hours long.
I think I found out what the problem is. I made a small change in "index_showsplit". Please try using WG+ with this .ini file. It also supports season and episode numbers now.
Thanks, will try.