This article reexamines the British Academic Spoken English Corpus (BASE) as a resource for research on university lectures and seminars and corpus-based language education. Drawing on the BASE manual, corpus documentation, and five representative studies, it reviews BASE's compilation, disciplinary balance, transcription conventions, versions, research applications, and pedagogical potential. The official release contains 1,644,942 tokens from 160 lectures and 39 seminars recorded at two British universities between 1998 and 2005. The review shows that BASE supports research on lexical bundles, pragmatic functions of just, relevance markers, lexical coverage, and tag questions, linking vocabulary, discourse organization, and lecturer-student interaction. Its strengths include coverage of four disciplinary domains, inclusion of both lectures and seminars, and annotation of speaker and nonverbal information. However, differences among the original XML files, research-specific datasets, and platform versions affect document and token counts. Uneven annotation, limited seminar data, normalized transcription, and restriction to two institutions constrain interpretation. Three AntConc activities are proposed: comparing just across lectures and seminars, contrasting BASE with MICASE, and analyzing relevance markers. The article argues that BASE remains valuable when researchers document versions and preprocessing decisions and treat findings as evidence about particular British academic settings rather than academic speech in general.