ab ▁pod cast ▁feed ▁featured ▁a ▁full - length , ▁hour - long ▁episode ▁every ▁six ▁weeks ▁( ann ounced ▁by ▁the ▁show ' s ▁hosts ▁as ▁" Rad i ol ab : ▁The ▁Pod cast "), ▁with ▁two ▁shorter ▁pieces ▁( known ▁as ▁" short s ") ▁appearing ▁in - between . ▁Many ▁of ▁these ▁shorter ▁pieces ▁would ▁later ▁be ▁pack aged ▁into ▁full - length ▁episodes ▁not ▁released ▁on ▁the ▁show ' s ▁pod cast ▁feed , ▁but ▁available ▁through ▁Rad i ol abs ▁website . ▁In ▁recent ▁years , ▁Rad i ol ab ▁has ▁de - standard ized ▁its ▁pod cast ▁format , ▁with ▁full - length ▁episodes ▁being ▁compiled ▁almost ▁entirely ▁from ▁previously - re leased ▁pod cast ▁short s . ▁The ▁program ▁air s ▁in ▁synd ic ation ▁to ▁over ▁ 4 5 0 ▁N PR ▁affili ates ▁around ▁the ▁country . ▁ ▁Rad i ol abs ▁first ▁nine ▁seasons ▁( F ebru ary ▁ 2 0 0 5 – A pril ▁ 2 0 1 1 ) ▁compr ised ▁five ▁episodes ▁each . ▁Sub sequ ent ▁seasons ▁contained ▁between ▁nine ▁and ▁ten ▁episodes . ▁Season ▁ 1 5 ▁began ▁air ing ▁in ▁January ▁ 2 0 1 7 . ▁In ▁ 2 0 1 8 ▁the ▁show ' s ▁season al ▁and ▁episode ▁format ▁became ▁obsc ured ▁when ▁online ▁content ▁moved ▁from ▁radi ol ab . org ▁to ▁w ny c stud ios . org . ▁ ▁Before ▁Season ▁ 1 ▁( 2 0 0 2 –