name the tv shows whose developer is baltasar kormákur and executive producer is sigurjón kjartansson ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_developer dbr_Baltasar_Kormákur sep_dot var_uri dbo_executiveProducer dbr_Sigurjón_Kjartansson sep_dot var_uri a dbo_TelevisionShow brack_close