list all episodes of the first season of the showtime television series stargate sg-1 !
select distinct var_uri where brack_open var_uri dbo_series dbr_Stargate_SG-1 sep_dot var_uri dbo_seasonNumber 1 sep_dot dbr_Stargate_SG-1 dbo_network dbr_Showtime_ attr_open TV_network attr_close brack_close