That is because you are working with a two dimensional array. You are very close, you just need to further dereference the variable $td

foreach my $td (@tds) {
    say for @$td;
}
[download]

You most likely need something more like this:

Output:

$VAR1 = [
  {
    'Actual Start' => undef,
    'Node Name' => 'ServerB',
    'Results' => undef,
    'Schedule Name' => 'DAILYBACKUP_6PM',
    'Schedule Start' => '2015-05-11-18.00',
    'Domain Name' => 'ST10_DOMAIN',
    'Status' => 'Missed'
  },
  {
    'Schedule Start' => '2015-05-11-18.00',
    'Results' => undef,
    'Domain Name' => 'ST13_DOMAIN',
    'Schedule Name' => 'NJDLYBACKUP_6PM',
    'Status' => 'Missed',
    'Node Name' => 'ServerC',
    'Actual Start' => undef
  }
];
[download]

(See emulate Python's range function for more information about the range() function included in the code.)

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

It is to extract the class tags with Warning and Error in a very, very long html report and print only the Warning/Errors. Extracting the values and dump them into array is something I had in mind, thanks a lot Jeff!! (And I don't know you can emulate range function!)