Everyone has a choice. For many test cricket fans its low buzz series. I am not watching live as well just keeping a tab on the score.
As of now, Kiwis are struggling at 71/3. They had a good start of 60+ runs, but 3 quick wickets by spinner Dananjaya turn the tide in favor of SriLankan.
Sri Lanka vs New Zealand test series is not some thing like England Vs Aussies Ashes series and hence it will not draw much attention other then the people of NZ and srilanka, who would like to watch this series.
Secondly no one has the time to click to the TV for 8 hours daily just to watch a test match.