Well, assuming that you can spot the position and save it as $sport, then you already have something to compare with. If I'm not mistaken, do you mean something like (untested):

my %count;
my $total;
while (<FILE>) {
  chomp;
  my($src, $sport) = (split /;/)[9,12];
  my $number_of_sport_shows_on_this_line = () = /$sport/gi;
  $count{$.} = $number_of_sport_shows_on_this_line;
  $total += $number_of_sport_shows_on_this_line;
}

# iterate %count to see how many the pattern shows up on each line
# $total is the total number the pattern shows up in the file
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If you avoid regexes:

my(%count, $total);
while (<FILE>) {
  chomp;
  my @fields = split /;/;
  my %seen;
  $seen{$_}++ for @fields;
  my $target = $fields[12];
  $count{$.} = $seen{$target};
  $total += $seen{$target};
}
[download]

Update: (15-07-2007) I misread the title, I missed the "appear together" part, and I second kyle's reply.