1. 
   PBS
   Public Broadcasting Service
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   PbS
   Lead(II) Sulfide Molar mass: 239.265
   Found op http://www.convertunits.com/molarmass/Lead(II)+Sulfide
   
   
3. 
   pbs
   1) 'antiques roadshow' airer 2) 'antiques roadshow' network 3) 'antiques roadshow' shower 4) 'baseball' showcase 5) 'be more ...' sloganeer 6) 'frontline' airer 7) 'masterpiece theatre' airer 8) 'mystery!' broadcaster 9) 'mystery!' chann...
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/pbs/1
   
   

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