Well the Omloop be telecast live anywhere in the UK? Didn't find it in sky or Eurosport schedules.
Omloop Het Nieuwsblad highlights
Sunday March 2: Sky Sports 4 – 1.00am; Sky Sports 3 – 7.00am
Sunday March 2: British Eurosport – 1.30pm
I watched Omloop with Flemish commentary last year on some Belgian website - its surprising how many words you can pick out. It will be incomprehensible for 30 secs, then you'll hear a phrase like "chase down the breakaway" or "Sky controlling the peloton" in perfect English! I found it entertaining anyway...
Online stream definitely the way to go - should be some legit ones from Dutch/Belgian tv stations.
Sportza is normally good for the spring one day races and isn't geo-restricted (or whatever the term is, I'm sure you know what I mean anyway)