how to use uniq-command to work on Match-result-COLUMNS.
sielectmatch need sto become more sophisticated...
catching "Bytes.sub" instead of "String.sub" - seems to be OCaml 4.02 problem.
arte-guide-parser: with -i switch DE and FR and different sizes can be selected :-)

Without -i switch on command line, a default is chosen.
very likely not your favourite, so use -i to get the possibility
of video-selection.
(Some information (quality and language is displayed before the
selection menue.)