What is the power, in kW, of channel TV-23, callsign DYCG-TV?
create table table_2610582_3 (power_kw__erp_ varchar, ch__number varchar, callsign varchar, PRIMARY KEY (power_kw__erp_))
select power_kw__erp_ from table_2610582_3 where ch__number = "tv-23" and callsign = "dycg-tv"